898 lines
No EOL
39 KiB
HTML
898 lines
No EOL
39 KiB
HTML
<!DOCTYPE html>
|
||
|
||
|
||
|
||
|
||
<html lang="en" >
|
||
<head itemscope itemtype="http://schema.org/WebPage" prefix="og: http://ogp.me/ns#" >
|
||
<meta charset="UTF-8">
|
||
<meta http-equiv="X-UA-Compatible" content="IE=edge">
|
||
|
||
<!-- Mobile properties -->
|
||
<meta name="HandheldFriendly" content="True">
|
||
<meta name="MobileOptimized" content="320">
|
||
<meta name="viewport" content="width=device-width, initial-scale=1.0">
|
||
|
||
|
||
|
||
|
||
<link rel="preconnect" href="https://cdn.ncbi.nlm.nih.gov">
|
||
<link rel="preconnect" href="https://www.ncbi.nlm.nih.gov">
|
||
<link rel="preconnect" href="https://www.google-analytics.com">
|
||
|
||
|
||
|
||
<link rel="stylesheet" href="https://cdn.ncbi.nlm.nih.gov/pubmed/1aadf23f-d23c-47f2-9ae5-722feb08e2c5/CACHE/css/output.5ecf62baa0fa.css" type="text/css">
|
||
|
||
|
||
<link rel="stylesheet" href="https://cdn.ncbi.nlm.nih.gov/pubmed/1aadf23f-d23c-47f2-9ae5-722feb08e2c5/CACHE/css/output.452c70ce66f7.css" type="text/css">
|
||
|
||
|
||
|
||
|
||
|
||
|
||
<link rel="stylesheet" href="https://cdn.ncbi.nlm.nih.gov/pubmed/1aadf23f-d23c-47f2-9ae5-722feb08e2c5/CACHE/css/output.7bf600913d6e.css" type="text/css">
|
||
|
||
|
||
|
||
|
||
<link rel="stylesheet" href="https://cdn.ncbi.nlm.nih.gov/pubmed/1aadf23f-d23c-47f2-9ae5-722feb08e2c5/CACHE/css/output.9bd24165addc.css" type="text/css">
|
||
|
||
<link rel="stylesheet" href="https://cdn.ncbi.nlm.nih.gov/pubmed/1aadf23f-d23c-47f2-9ae5-722feb08e2c5/CACHE/css/output.0f3124b0eb81.css" type="text/css">
|
||
|
||
|
||
<title>Disclaimer - PubMed</title>
|
||
|
||
|
||
|
||
|
||
<!-- Favicons -->
|
||
<link rel="shortcut icon" type="image/ico" href="https://cdn.ncbi.nlm.nih.gov/coreutils/nwds/img/favicons/favicon.ico" />
|
||
<link rel="icon" type="image/png" href="https://cdn.ncbi.nlm.nih.gov/coreutils/nwds/img/favicons/favicon.png" />
|
||
|
||
<!-- 192x192, as recommended for Android
|
||
http://updates.html5rocks.com/2014/11/Support-for-theme-color-in-Chrome-39-for-Android
|
||
-->
|
||
<link rel="icon" type="image/png" sizes="192x192" href="https://cdn.ncbi.nlm.nih.gov/coreutils/nwds/img/favicons/favicon-192.png" />
|
||
|
||
<!-- 57x57 (precomposed) for iPhone 3GS, pre-2011 iPod Touch and older Android devices -->
|
||
<link rel="apple-touch-icon-precomposed" href="https://cdn.ncbi.nlm.nih.gov/coreutils/nwds/img/favicons/favicon-57.png">
|
||
<!-- 72x72 (precomposed) for 1st generation iPad, iPad 2 and iPad mini -->
|
||
<link rel="apple-touch-icon-precomposed" sizes="72x72" href="https://cdn.ncbi.nlm.nih.gov/coreutils/nwds/img/favicons/favicon-72.png">
|
||
<!-- 114x114 (precomposed) for iPhone 4, 4S, 5 and post-2011 iPod Touch -->
|
||
<link rel="apple-touch-icon-precomposed" sizes="114x114" href="https://cdn.ncbi.nlm.nih.gov/coreutils/nwds/img/favicons/favicon-114.png">
|
||
<!-- 144x144 (precomposed) for iPad 3rd and 4th generation -->
|
||
<link rel="apple-touch-icon-precomposed" sizes="144x144" href="https://cdn.ncbi.nlm.nih.gov/coreutils/nwds/img/favicons/favicon-144.png">
|
||
|
||
|
||
<!-- For Pinger + Google Optimize integration (NS-820) -->
|
||
<meta name="ncbi_sg_optimize_id" content="">
|
||
|
||
<!-- Mobile browser address bar color -->
|
||
<meta name="theme-color" content="#20558a">
|
||
|
||
<!-- Preserve the Referrer when going from HTTPS to HTTP -->
|
||
<meta name="referrer" content="origin-when-cross-origin">
|
||
|
||
<meta name="ncbi_pinger_gtm_track" content="true"/>
|
||
<!-- Logging params: Pinger defaults -->
|
||
|
||
|
||
<meta name="ncbi_app" content="pubmed" />
|
||
|
||
|
||
|
||
<meta name="ncbi_db" content="pubmed" />
|
||
|
||
|
||
|
||
|
||
|
||
<meta name="ncbi_phid" content="BDB80001E3646F650000295D95A95CF5.1.m_1" />
|
||
|
||
|
||
|
||
<meta name="ncbi_pinger_stat_url" content="https://www.ncbi.nlm.nih.gov/stat" />
|
||
|
||
|
||
|
||
<meta name="log_category" content="literature" />
|
||
|
||
|
||
|
||
<meta name="ncbi_cost_center" content="pubmed" />
|
||
|
||
|
||
|
||
|
||
<!-- Logging params: Pinger custom -->
|
||
|
||
<meta name="ncbi_pdid" content="disclaimer" />
|
||
|
||
<meta name="log_op" content="page_view" />
|
||
|
||
|
||
|
||
|
||
<!-- Social meta tags for unfurling urls -->
|
||
|
||
<meta name="description" content="PubMed disclaimer page."><meta name="keywords" content="PubMed, about, NIH, NLM, NCBI, National Institutes of Health, National Center for Biotechnology Information, National Library of Medicine, MEDLINE"><meta name="robots" content="index,follow,noarchive"><meta property="og:title" content="Disclaimer - PubMed"><meta property="og:url" content="https://pubmed.ncbi.nlm.nih.gov/disclaimer/"><meta property="og:description" content="PubMed disclaimer page."><meta property="og:image" content="https://cdn.ncbi.nlm.nih.gov/pubmed/persistent/pubmed-meta-image-v2.jpg"><meta property="og:image:secure_url" content="https://cdn.ncbi.nlm.nih.gov/pubmed/persistent/pubmed-meta-image-v2.jpg"><meta property="og:type" content="website"><meta property="og:site_name" content="PubMed"><meta name="twitter:domain" content="pubmed.ncbi.nlm.nih.gov"><meta name="twitter:card" content="summary_large_image"><meta name="twitter:title" content="Disclaimer - PubMed"><meta name="twitter:url" content="https://pubmed.ncbi.nlm.nih.gov/disclaimer/"><meta name="twitter:description" content="PubMed disclaimer page."><meta name="twitter:image" content="https://cdn.ncbi.nlm.nih.gov/pubmed/persistent/pubmed-meta-image-v2.jpg">
|
||
|
||
|
||
<!-- OpenSearch XML -->
|
||
<link rel="search" type="application/opensearchdescription+xml" href="https://cdn.ncbi.nlm.nih.gov/pubmed/persistent/opensearch.xml" title="PubMed search">
|
||
|
||
<!-- Disables severely broken elements when no JS -->
|
||
<noscript>
|
||
<link rel="stylesheet" type="text/css" href="https://cdn.ncbi.nlm.nih.gov/pubmed/1aadf23f-d23c-47f2-9ae5-722feb08e2c5/core/no-script.css">
|
||
</noscript>
|
||
|
||
|
||
|
||
<link rel="canonical" href="https://pubmed.ncbi.nlm.nih.gov/disclaimer/" />
|
||
|
||
|
||
<!-- SEO tags -->
|
||
<link rel="canonical" href="https://pubmed.ncbi.nlm.nih.gov/disclaimer/" />
|
||
|
||
|
||
</head>
|
||
<body >
|
||
|
||
|
||
|
||
<noscript>
|
||
<div class="no-script-banner" id="no-script-banner">
|
||
<div class="warning-message">
|
||
<div class="warning-message-text">
|
||
This site needs JavaScript to work properly. Please enable it to take advantage of the complete set of features!
|
||
</div>
|
||
</div>
|
||
</div>
|
||
</noscript>
|
||
|
||
<div class="no-session-banner" id="no-session-banner" hidden>
|
||
<div class="warning-message">
|
||
<div class="warning-message-text">
|
||
Clipboard, Search History, and several other advanced features are temporarily unavailable.
|
||
</div>
|
||
<button class="close-banner-button"
|
||
title="Close Clipboard and Search History not available warning banner"
|
||
ref="linksrc=close_no_session_banner"
|
||
aria-controls="no-session-banner"
|
||
aria-label="Close Clipboard and Search History not available warning banner"
|
||
aria-expanded="true">
|
||
</button>
|
||
</div>
|
||
</div>
|
||
|
||
|
||
|
||
<a class="usa-skipnav" href="#disclaimer-page">
|
||
Skip to main page content
|
||
</a>
|
||
|
||
<!-- ========== BEGIN HEADER ========== -->
|
||
<section class="usa-banner">
|
||
<div class="usa-accordion">
|
||
<header class="usa-banner-header">
|
||
<div class="usa-grid usa-banner-inner">
|
||
<img src="https://www.ncbi.nlm.nih.gov/coreutils/uswds/img/favicons/favicon-57.png" alt="U.S. flag" />
|
||
<p>An official website of the United States government</p>
|
||
<button
|
||
class="usa-accordion-button usa-banner-button"
|
||
aria-expanded="false"
|
||
aria-controls="gov-banner-top"
|
||
>
|
||
<span class="usa-banner-button-text">Here's how you know</span>
|
||
</button>
|
||
</div>
|
||
</header>
|
||
<div
|
||
class="usa-banner-content usa-grid usa-accordion-content"
|
||
id="gov-banner-top"
|
||
>
|
||
<div class="usa-banner-guidance-gov usa-width-one-half">
|
||
<img
|
||
class="usa-banner-icon usa-media_block-img"
|
||
src="https://www.ncbi.nlm.nih.gov/coreutils/uswds/img/icon-dot-gov.svg"
|
||
alt="Dot gov"
|
||
/>
|
||
<div class="usa-media_block-body">
|
||
<p>
|
||
<strong>The .gov means it’s official.</strong>
|
||
<br />
|
||
Federal government websites often end in .gov or .mil. Before
|
||
sharing sensitive information, make sure you’re on a federal
|
||
government site.
|
||
</p>
|
||
</div>
|
||
</div>
|
||
<div class="usa-banner-guidance-ssl usa-width-one-half">
|
||
<img
|
||
class="usa-banner-icon usa-media_block-img"
|
||
src="https://www.ncbi.nlm.nih.gov/coreutils/uswds/img/icon-https.svg"
|
||
alt="Https"
|
||
/>
|
||
<div class="usa-media_block-body">
|
||
<p>
|
||
<strong>The site is secure.</strong>
|
||
<br />
|
||
The <strong>https://</strong> ensures that you are connecting to the
|
||
official website and that any information you provide is encrypted
|
||
and transmitted securely.
|
||
</p>
|
||
</div>
|
||
</div>
|
||
</div>
|
||
</div>
|
||
</section>
|
||
<div class="usa-overlay"></div>
|
||
<header class="ncbi-header" role="banner" data-section="Header">
|
||
|
||
<div class="usa-grid">
|
||
<div class="usa-width-one-whole">
|
||
|
||
<div class="ncbi-header__logo">
|
||
<a href="https://www.ncbi.nlm.nih.gov/" class="logo" aria-label="NCBI Logo" data-ga-action="click_image" data-ga-label="NIH NLM Logo">
|
||
<img src="https://www.ncbi.nlm.nih.gov/coreutils/nwds/img/logos/AgencyLogo.svg" alt="NIH NLM Logo" />
|
||
</a>
|
||
</div>
|
||
|
||
<div class="ncbi-header__account">
|
||
<a id="account_login" href="https://account.ncbi.nlm.nih.gov" class="usa-button header-button" style="display:none" data-ga-action="open_menu" data-ga-label="account_menu">Log in</a>
|
||
<button id="account_info" class="header-button" style="display:none"
|
||
aria-controls="account_popup">
|
||
<span class="fa fa-user" aria-hidden="true"></span>
|
||
<span class="username desktop-only" aria-hidden="true" id="uname_short"></span>
|
||
<span class="sr-only">Show account info</span>
|
||
</button>
|
||
</div>
|
||
|
||
<div class="ncbi-popup-anchor">
|
||
<div class="ncbi-popup account-popup" id="account_popup" aria-hidden="true">
|
||
<div class="ncbi-popup-head">
|
||
<button class="ncbi-close-button" data-ga-action="close_menu" data-ga-label="account_menu"><span class="fa fa-times"></span><span class="usa-sr-only">Close</span></button>
|
||
<h4>Account</h4>
|
||
</div>
|
||
<div class="account-user-info">
|
||
Logged in as:<br/>
|
||
<b><span class="username" id="uname_long">username</span></b>
|
||
</div>
|
||
<div class="account-links">
|
||
<ul class="usa-unstyled-list">
|
||
<li><a id="account_myncbi" href="/myncbi/" class="set-base-url" data-ga-action="click_menu_item" data-ga-label="account_myncbi">Dashboard</a></li>
|
||
<li><a id="account_pubs" href="/myncbi/collections/bibliography/" class="set-base-url" data-ga-action="click_menu_item" data-ga-label="account_pubs">Publications</a></li>
|
||
<li><a id="account_settings" href="/account/settings/" class="set-base-url" data-ga-action="click_menu_item" data-ga-label="account_settings">Account settings</a></li>
|
||
<li><a id="account_logout" href="/account/signout/" class="set-base-url" data-ga-action="click_menu_item" data-ga-label="account_logout">Log out</a></li>
|
||
</ul>
|
||
</div>
|
||
</div>
|
||
</div>
|
||
|
||
</div>
|
||
</div>
|
||
</header>
|
||
<div role="navigation" aria-label="access keys">
|
||
<a id="nws_header_accesskey_0" href="https://www.ncbi.nlm.nih.gov/guide/browsers/#ncbi_accesskeys" class="usa-sr-only" accesskey="0" tabindex="-1">Access keys</a>
|
||
<a id="nws_header_accesskey_1" href="https://www.ncbi.nlm.nih.gov" class="usa-sr-only" accesskey="1" tabindex="-1">NCBI Homepage</a>
|
||
<a id="nws_header_accesskey_2" href="/myncbi/" class="set-base-url usa-sr-only" accesskey="2" tabindex="-1">MyNCBI Homepage</a>
|
||
<a id="nws_header_accesskey_3" href="#maincontent" class="usa-sr-only" accesskey="3" tabindex="-1">Main Content</a>
|
||
<a id="nws_header_accesskey_4" href="#" class="usa-sr-only" accesskey="4" tabindex="-1">Main Navigation</a>
|
||
</div>
|
||
<section data-section="Alerts">
|
||
<div class="ncbi-alerts-placeholder"></div>
|
||
</section>
|
||
<!-- ========== END HEADER ========== -->
|
||
|
||
|
||
<a id="maincontent" aria-label="Main page content below" role="navigation"></a>
|
||
|
||
|
||
|
||
|
||
|
||
|
||
<input type="hidden" name="csrfmiddlewaretoken" value="100EuBWr4XH2yptM7mgY2d1LC9B833bKiNKJ7rpNEyuwsQzCKFT0wlxpadjkWEJ4">
|
||
<form action="/" method="get" autocomplete="off" class="usa-search usa-search-big search-form content-page-layout" id="search-form" role="search">
|
||
<div class="inner-wrap">
|
||
<a class="pubmed-logo"
|
||
aria-label="Pubmed Logo"
|
||
href="/"
|
||
data-ga-category="featured_link"
|
||
data-ga-action="pubmed_logo">
|
||
|
||
|
||
<img src="https://cdn.ncbi.nlm.nih.gov/pubmed/1aadf23f-d23c-47f2-9ae5-722feb08e2c5/core/images/pubmed-logo-blue.svg" alt="pubmed logo" />
|
||
|
||
</a>
|
||
|
||
<a href="#" class="search-input-trigger" data-alt-title="Hide search bar" title="Show search bar" aria-label="Show search bar">
|
||
</a>
|
||
|
||
<div role="search" class="search-input">
|
||
|
||
|
||
<div class="form-field ">
|
||
|
||
|
||
<label class="usa-sr-only" for="id_term">
|
||
Search:
|
||
</label>
|
||
|
||
|
||
|
||
<input
|
||
type="search"
|
||
name="term"
|
||
|
||
data-skip-ie-scroll-to-top=""
|
||
data-replace-term-with-exact=""
|
||
data-exact-query=""
|
||
placeholder=""
|
||
class="term-input"
|
||
required="required"
|
||
id="id_term"/><a href="#" class="clear-btn" aria-label="Clear search input" title="Clear search input" role="button" data-pinger-ignore></a><button type="submit" class="search-btn" aria-label="Search" disabled data-pinger-ignore><span class="usa-search-submit-text">Search</span></button>
|
||
|
||
|
||
|
||
|
||
|
||
</div>
|
||
|
||
</div>
|
||
|
||
<!-- Create alert and Create RSS are buttons that look like links -->
|
||
<!-- Better for them to look like buttons but no space -->
|
||
<div class="search-links-wrapper content-page-layout">
|
||
<div class="search-links">
|
||
<a href="/advanced/"
|
||
class="search-input-link adv-search-link"
|
||
data-ga-category="featured_link"
|
||
data-ga-action="adv_search">Advanced</a>
|
||
|
||
|
||
<a href="/clipboard/"
|
||
class="search-input-link clipboard-link hidden"
|
||
data-ga-category="featured_link"
|
||
data-ga-action="clipboard">
|
||
Clipboard <span class="amount-in-clipboard"></span>
|
||
</a>
|
||
</div>
|
||
|
||
<span class="search-input-link user-guide-link" role="navigation" aria-label="User guide">
|
||
<a href="/help/"
|
||
data-ga-category="featured_link"
|
||
data-ga-action="user_guide">
|
||
User Guide
|
||
</a>
|
||
</span>
|
||
|
||
</div>
|
||
</div>
|
||
|
||
|
||
</form>
|
||
|
||
|
||
|
||
<main class="content-page help-page" id="disclaimer-page">
|
||
|
||
<div class="page-sidebar">
|
||
<div class="inner-wrap">
|
||
<nav class="page-navigator" role="navigation" aria-label="Page navigation">
|
||
<div class="full-view">
|
||
<h3 class="title">
|
||
Page navigation
|
||
</h3>
|
||
<ul class="items-list">
|
||
|
||
|
||
<li class="literature-database-content current">
|
||
<a href="#literature-database-content"
|
||
aria-label="navigate to Literature Database Content section"
|
||
data-ga-category="page_nav"
|
||
data-ga-action="literature-database-content">
|
||
Literature Database Content
|
||
</a>
|
||
</li>
|
||
|
||
|
||
|
||
|
||
<li class="liability ">
|
||
<a href="#liability"
|
||
aria-label="navigate to Liability section"
|
||
data-ga-category="page_nav"
|
||
data-ga-action="liability">
|
||
Liability
|
||
</a>
|
||
</li>
|
||
|
||
|
||
|
||
|
||
<li class="endorsement ">
|
||
<a href="#endorsement"
|
||
aria-label="navigate to Endorsement section"
|
||
data-ga-category="page_nav"
|
||
data-ga-action="endorsement">
|
||
Endorsement
|
||
</a>
|
||
</li>
|
||
|
||
|
||
|
||
|
||
<li class="external-links ">
|
||
<a href="#external-links"
|
||
aria-label="navigate to External Links section"
|
||
data-ga-category="page_nav"
|
||
data-ga-action="external-links">
|
||
External Links
|
||
</a>
|
||
</li>
|
||
|
||
|
||
|
||
|
||
<li class="advertisements ">
|
||
<a href="#advertisements"
|
||
aria-label="navigate to Pop-Up Advertisements section"
|
||
data-ga-category="page_nav"
|
||
data-ga-action="advertisements">
|
||
Pop-Up Advertisements
|
||
</a>
|
||
</li>
|
||
|
||
|
||
|
||
|
||
<li class="medical-information-advice ">
|
||
<a href="#medical-information-advice"
|
||
aria-label="navigate to Medical Information and Advice section"
|
||
data-ga-category="page_nav"
|
||
data-ga-action="medical-information-advice">
|
||
Medical Information and Advice
|
||
</a>
|
||
</li>
|
||
|
||
|
||
|
||
</ul>
|
||
</div>
|
||
<select class="short-view" autocomplete="off" title="navigate to selected section" aria-label="Navigate to page section">
|
||
|
||
|
||
<option value="literature-database-content">Literature Database Content</option>
|
||
|
||
|
||
|
||
<option value="liability">Liability</option>
|
||
|
||
|
||
|
||
<option value="endorsement">Endorsement</option>
|
||
|
||
|
||
|
||
<option value="external-links">External Links</option>
|
||
|
||
|
||
|
||
<option value="advertisements">Pop-Up Advertisements</option>
|
||
|
||
|
||
|
||
<option value="medical-information-advice">Medical Information and Advice</option>
|
||
|
||
|
||
</select>
|
||
</nav>
|
||
|
||
</div>
|
||
</div>
|
||
|
||
<div class="container">
|
||
<h1 class="title">Disclaimer</h1>
|
||
<p>This disclaimer relates to PubMed, PubMed Central (PMC), and Bookshelf. These three
|
||
resources are scientific literature databases offered to the public by the U.S. National
|
||
Library of Medicine (NLM). NLM is not a publisher, but rather collects, indexes, and
|
||
archives scientific literature published by other organizations. The presence of any
|
||
article, book, or document in these databases does not imply an endorsement of, or
|
||
concurrence with, the contents by NLM, the National Institutes of Health (NIH), or the
|
||
U.S. Federal Government.</p>
|
||
<p>Please see more below about our content and how our databases relate to you. </p>
|
||
<h2 id="literature-database-content">Literature Database Content</h2>
|
||
<p>Content in NLM literature databases may be published by academic publishers or
|
||
institutions, scholarly societies, or government and non-governmental organizations. To
|
||
be added to a database, a publication must apply and be selected by NLM for inclusion in
|
||
MEDLINE, PMC, or Bookshelf. PubMed indexes and makes searchable the contents of these
|
||
databases; MEDLINE is the primary component of PubMed. Details on the content selection
|
||
processes for each database can be found at:</p>
|
||
<ul>
|
||
<li><a href="https://www.nlm.nih.gov/medline/medline_journal_selection.html"
|
||
>MEDLINE</a></li>
|
||
<li><a href="https://www.ncbi.nlm.nih.gov/pmc/pub/journalselect">PubMed Central</a></li>
|
||
<li><a href="https://www.ncbi.nlm.nih.gov/books/NBK554838">Bookshelf</a></li>
|
||
</ul>
|
||
<p>Once publications are selected for inclusion in a database, NLM does not review,
|
||
evaluate, or judge the quality of individual articles and relies on the scientific
|
||
publishing process to identify and address problems through published comments,
|
||
corrections, and retractions (or, as in the case of preprints, withdrawal notices). The
|
||
publisher is responsible for maintaining the currency of the scientific record and
|
||
depositing all relevant updates to the appropriate NLM database.</p>
|
||
<p>NLM literature databases also archive and index articles, author manuscripts, and book
|
||
chapters that may be from publications that have not yet undergone scientific review by
|
||
NLM, are traditionally out of scope for the NLM collection, or have not met NLM’s
|
||
standards for inclusion in a given database if a paper is deposited under:</p>
|
||
<ul>
|
||
<li>The <a href="https://publicaccess.nih.gov/">NIH Public Access Policy</a> or a
|
||
similar funder policy: NIH and other funders do not dictate where their funded
|
||
authors may publish. Most records in the NLM literature databases have not been
|
||
funded by the NIH or other agencies of the U.S. Federal Government.</li>
|
||
</ul>
|
||
<ul style="list-style: none;">
|
||
<li>OR</li>
|
||
</ul>
|
||
<ul>
|
||
<li><a href="https://www.ncbi.nlm.nih.gov/pmc/about/covid-19/">The PMC COVID-19
|
||
Collection</a>: The articles deposited under this initiative
|
||
– and the terms under which they are made available – are at the discretion of the
|
||
publisher. To participate in this collaboration, a publisher must have journals in
|
||
scope and eligible for inclusion the NLM Collection.</li>
|
||
</ul>
|
||
<p>PMC and PubMed also include preprints reporting NIH-supported research in support of the
|
||
<a href="https://www.ncbi.nlm.nih.gov/pmc/about/nihpreprints/">NIH Preprint
|
||
Pilot</a>. As preprints are interim research products that have not been peer
|
||
reviewed, readers should be aware that any aspect of the research, including the results
|
||
and conclusions, may change as a result of peer review.</p>
|
||
<h2 id="liability">Liability</h2>
|
||
<p>For documents and software available from this server, the U.S. Government does not
|
||
warrant or assume any legal liability or responsibility for the accuracy, completeness,
|
||
or usefulness of any information, apparatus, product, or process disclosed.</p>
|
||
<h2 id="endorsement">Endorsement</h2>
|
||
<p>NLM does not endorse or recommend any commercial products, processes, or services. The
|
||
views and opinions of authors expressed on NLM's Web sites do not necessarily state or
|
||
reflect those of the U.S. Government, and they may not be used for advertising or
|
||
product endorsement purposes.</p>
|
||
<h2 id="external-links">External Links</h2>
|
||
<p>Some NLM Web pages may provide links to other Internet sites for the convenience of
|
||
users. NLM is not responsible for the availability or content of these external sites,
|
||
nor does NLM endorse, warrant, or guarantee the products, services, or information
|
||
described or offered at these other Internet sites. Users cannot assume that the
|
||
external sites will abide by the same <a href="https://www.nlm.nih.gov/privacy.html"
|
||
>Privacy Policy</a> to which NLM adheres. It is the responsibility of the user to
|
||
examine the copyright and licensing restrictions of linked pages and to secure all
|
||
necessary permissions.</p>
|
||
<h2 id="advertisements">Pop-Up Advertisements</h2>
|
||
<p>When visiting our Web site, your Web browser may produce pop-up advertisements. These
|
||
advertisements were most likely produced by other Web sites you visited or by third
|
||
party software installed on your computer. The NLM does not endorse or recommend
|
||
products or services for which you may view a pop-up advertisement on your computer
|
||
screen while visiting our site.</p>
|
||
<h2 id="medical-information-advice">Medical Information and Advice</h2>
|
||
<p>It is not the intention of NLM to provide specific medical advice but rather to provide
|
||
users with information to better understand their health and their diagnosed disorders.
|
||
Specific medical advice will not be provided, and NLM urges you to consult with a
|
||
qualified physician for diagnosis and for answers to your personal questions.</p>
|
||
</div>
|
||
|
||
<button
|
||
class="back-to-top"
|
||
data-ga-category="pagination"
|
||
data-ga-action="back_to_top">
|
||
Back to Top
|
||
</button>
|
||
|
||
</main>
|
||
|
||
|
||
<div id="ncbi-footer">
|
||
<div class="literature-footer" role="complementary" title="Links to NCBI Literature Resources">
|
||
<div class="usa-grid">
|
||
<p class="literature-footer-text">NCBI Literature Resources</p>
|
||
<p class="literature-footer-text">
|
||
<a class="literature-footer-link" data-ga-category="literature_resources" data-ga-action="mesh_link" href="https://www.ncbi.nlm.nih.gov/mesh/">MeSH</a>
|
||
<a class="literature-footer-link" data-ga-category="literature_resources" data-ga-action="pmc_link" href="https://www.ncbi.nlm.nih.gov/pmc/">PMC</a>
|
||
<a class="literature-footer-link" data-ga-category="literature_resources" data-ga-action="bookshelf_link" href="https://www.ncbi.nlm.nih.gov/books">Bookshelf</a>
|
||
<a class="literature-footer-link" data-ga-category="literature_resources" data-ga-action="disclaimer_link" href="/disclaimer/">Disclaimer</a>
|
||
</p>
|
||
<p class="literature-footer-text attribution-statement">The PubMed wordmark and PubMed logo are registered trademarks of the U.S. Department of Health and Human Services (HHS). Unauthorized use of these marks is strictly prohibited.</p>
|
||
</div>
|
||
</div>
|
||
<!-- ========== BEGIN FOOTER ========== -->
|
||
<footer>
|
||
<section class="icon-section">
|
||
<div id="icon-section-header" class="icon-section_header">Follow NCBI</div>
|
||
<div class="grid-container container">
|
||
<div class="icon-section_container">
|
||
<a class="footer-icon" id="footer_twitter" href="https://twitter.com/ncbi" aria-label="Twitter">
|
||
<svg width="40" height="40" viewBox="0 0 40 37" fill="none" xmlns="http://www.w3.org/2000/svg">
|
||
<title>Twitter</title>
|
||
<g id="twitterx1008">
|
||
<path id="path1008"
|
||
d="M6.06736 7L16.8778 20.8991L6.00001 32.2H10.2L18.6 23.1L25.668 32.2H34L22.8 17.5L31.9 7H28.4L20.7 15.4L14.401 7H6.06898H6.06736ZM9.66753 8.73423H12.9327L29.7327 30.4658H26.5697L9.66753 8.73423Z"
|
||
fill="#5B616B"/>
|
||
</g>
|
||
</svg>
|
||
</a>
|
||
<a class="footer-icon" id="footer_facebook" href="https://www.facebook.com/ncbi.nlm" aria-label="Facebook"><svg
|
||
data-name="Layer 1" xmlns="http://www.w3.org/2000/svg" viewBox="0 0 300 300">
|
||
<title>Facebook</title>
|
||
<path class="cls-11"
|
||
d="M210.5,115.12H171.74V97.82c0-8.14,5.39-10,9.19-10h27.14V52l-39.32-.12c-35.66,0-42.42,26.68-42.42,43.77v19.48H99.09v36.32h27.24v109h45.41v-109h35Z">
|
||
</path>
|
||
</svg></a>
|
||
<a class="footer-icon" id="footer_linkedin"
|
||
href="https://www.linkedin.com/company/ncbinlm"
|
||
aria-label="LinkedIn"><svg data-name="Layer 1" xmlns="http://www.w3.org/2000/svg" viewBox="0 0 300 300">
|
||
<title>LinkedIn</title>
|
||
<path class="cls-11"
|
||
d="M101.64,243.37H57.79v-114h43.85Zm-22-131.54h-.26c-13.25,0-21.82-10.36-21.82-21.76,0-11.65,8.84-21.15,22.33-21.15S101.7,78.72,102,90.38C102,101.77,93.4,111.83,79.63,111.83Zm100.93,52.61A17.54,17.54,0,0,0,163,182v61.39H119.18s.51-105.23,0-114H163v13a54.33,54.33,0,0,1,34.54-12.66c26,0,44.39,18.8,44.39,55.29v58.35H198.1V182A17.54,17.54,0,0,0,180.56,164.44Z">
|
||
</path>
|
||
</svg></a>
|
||
<a class="footer-icon" id="footer_github" href="https://github.com/ncbi" aria-label="GitHub"><svg
|
||
data-name="Layer 1" xmlns="http://www.w3.org/2000/svg" viewBox="0 0 300 300">
|
||
<defs>
|
||
<style>
|
||
.cls-11,
|
||
.cls-12 {
|
||
fill: #737373;
|
||
}
|
||
|
||
.cls-11 {
|
||
fill-rule: evenodd;
|
||
}
|
||
</style>
|
||
</defs>
|
||
<title>GitHub</title>
|
||
<path class="cls-11"
|
||
d="M151.36,47.28a105.76,105.76,0,0,0-33.43,206.1c5.28,1,7.22-2.3,7.22-5.09,0-2.52-.09-10.85-.14-19.69-29.42,6.4-35.63-12.48-35.63-12.48-4.81-12.22-11.74-15.47-11.74-15.47-9.59-6.56.73-6.43.73-6.43,10.61.75,16.21,10.9,16.21,10.9,9.43,16.17,24.73,11.49,30.77,8.79,1-6.83,3.69-11.5,6.71-14.14C108.57,197.1,83.88,188,83.88,147.51a40.92,40.92,0,0,1,10.9-28.39c-1.1-2.66-4.72-13.42,1-28,0,0,8.88-2.84,29.09,10.84a100.26,100.26,0,0,1,53,0C198,88.3,206.9,91.14,206.9,91.14c5.76,14.56,2.14,25.32,1,28a40.87,40.87,0,0,1,10.89,28.39c0,40.62-24.74,49.56-48.29,52.18,3.79,3.28,7.17,9.71,7.17,19.58,0,14.15-.12,25.54-.12,29,0,2.82,1.9,6.11,7.26,5.07A105.76,105.76,0,0,0,151.36,47.28Z">
|
||
</path>
|
||
<path class="cls-12"
|
||
d="M85.66,199.12c-.23.52-1.06.68-1.81.32s-1.2-1.06-.95-1.59,1.06-.69,1.82-.33,1.21,1.07.94,1.6Zm-1.3-1">
|
||
</path>
|
||
<path class="cls-12"
|
||
d="M90,203.89c-.51.47-1.49.25-2.16-.49a1.61,1.61,0,0,1-.31-2.19c.52-.47,1.47-.25,2.17.49s.82,1.72.3,2.19Zm-1-1.08">
|
||
</path>
|
||
<path class="cls-12"
|
||
d="M94.12,210c-.65.46-1.71,0-2.37-.91s-.64-2.07,0-2.52,1.7,0,2.36.89.65,2.08,0,2.54Zm0,0"></path>
|
||
<path class="cls-12"
|
||
d="M99.83,215.87c-.58.64-1.82.47-2.72-.41s-1.18-2.06-.6-2.7,1.83-.46,2.74.41,1.2,2.07.58,2.7Zm0,0">
|
||
</path>
|
||
<path class="cls-12"
|
||
d="M107.71,219.29c-.26.82-1.45,1.2-2.64.85s-2-1.34-1.74-2.17,1.44-1.23,2.65-.85,2,1.32,1.73,2.17Zm0,0">
|
||
</path>
|
||
<path class="cls-12"
|
||
d="M116.36,219.92c0,.87-1,1.59-2.24,1.61s-2.29-.68-2.3-1.54,1-1.59,2.26-1.61,2.28.67,2.28,1.54Zm0,0">
|
||
</path>
|
||
<path class="cls-12"
|
||
d="M124.42,218.55c.15.85-.73,1.72-2,1.95s-2.37-.3-2.52-1.14.73-1.75,2-2,2.37.29,2.53,1.16Zm0,0"></path>
|
||
</svg></a>
|
||
<a class="footer-icon" id="footer_blog" href="https://ncbiinsights.ncbi.nlm.nih.gov/" aria-label="Blog">
|
||
<svg id="Layer_1" data-name="Layer 1" xmlns="http://www.w3.org/2000/svg" viewBox="0 0 40 40"><defs><style>.cls-1{fill:#737373;}</style></defs><path class="cls-1" d="M14,30a4,4,0,1,1-4-4,4,4,0,0,1,4,4Zm11,3A19,19,0,0,0,7.05,15a1,1,0,0,0-1,1v3a1,1,0,0,0,.93,1A14,14,0,0,1,20,33.07,1,1,0,0,0,21,34h3a1,1,0,0,0,1-1Zm9,0A28,28,0,0,0,7,6,1,1,0,0,0,6,7v3a1,1,0,0,0,1,1A23,23,0,0,1,29,33a1,1,0,0,0,1,1h3A1,1,0,0,0,34,33Z"/></svg>
|
||
</a>
|
||
</div>
|
||
</div>
|
||
</section>
|
||
|
||
<section class="container-fluid bg-primary">
|
||
<div class="container pt-5">
|
||
<div class="row mt-3">
|
||
<div class="col-lg-3 col-12">
|
||
<p><a class="text-white" href="https://www.nlm.nih.gov/socialmedia/index.html">Connect with NLM</a></p>
|
||
<ul class="list-inline social_media">
|
||
<li class="list-inline-item"><a href="https://twitter.com/NLM_NIH" aria-label="Twitter"
|
||
target="_blank" rel="noopener noreferrer">
|
||
<svg width="35" height="35" viewBox="0 0 38 35" fill="none" xmlns="http://www.w3.org/2000/svg">
|
||
<title>Twitter</title>
|
||
<g id="twitterx1009" clip-path="url(#clip0_65276_3946)">
|
||
<path id="Vector" d="M17.5006 34.6565C26.9761 34.6565 34.6575 26.9751 34.6575 17.4996C34.6575 8.02416 26.9761 0.342773 17.5006 0.342773C8.02514 0.342773 0.34375 8.02416 0.34375 17.4996C0.34375 26.9751 8.02514 34.6565 17.5006 34.6565Z" fill="#205493" stroke="white" stroke-width="1.2" stroke-miterlimit="10"></path>
|
||
<path id="path1009" d="M8.54811 8.5L16.2698 18.4279L8.50001 26.5H11.5L17.5 20L22.5486 26.5H28.5L20.5 16L27 8.5H24.5L19 14.5L14.5007 8.5H8.54927H8.54811ZM11.1197 9.73873H13.4519L25.4519 25.2613H23.1926L11.1197 9.73873Z" fill="white"></path>
|
||
</g>
|
||
<defs>
|
||
<clipPath id="clip0_65276_3946">
|
||
<rect width="38" height="38" fill="white"></rect>
|
||
</clipPath>
|
||
</defs>
|
||
</svg></a>
|
||
</li>
|
||
<li class="list-inline-item"><a href="https://www.facebook.com/nationallibraryofmedicine"
|
||
aria-label="Facebook" rel="noopener noreferrer" target="_blank">
|
||
<svg version="1.1" xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink" x="0px"
|
||
y="0px" viewBox="0 0 249 249" style="enable-background:new 0 0 249 249;" xml:space="preserve">
|
||
<style type="text/css">
|
||
.st10 {
|
||
fill: #FFFFFF;
|
||
}
|
||
|
||
.st110 {
|
||
fill: none;
|
||
stroke: #FFFFFF;
|
||
stroke-width: 8;
|
||
stroke-miterlimit: 10;
|
||
}
|
||
</style>
|
||
<title>SM-Facebook</title>
|
||
<g>
|
||
<g>
|
||
<path class="st10" d="M159,99.1h-24V88.4c0-5,3.3-6.2,5.7-6.2h16.8V60l-24.4-0.1c-22.1,0-26.2,16.5-26.2,27.1v12.1H90v22.5h16.9
|
||
v67.5H135v-67.5h21.7L159,99.1z"></path>
|
||
</g>
|
||
</g>
|
||
<circle class="st110" cx="123.6" cy="123.2" r="108.2"></circle>
|
||
</svg>
|
||
</a></li>
|
||
<li class="list-inline-item"><a href="https://www.youtube.com/user/NLMNIH" aria-label="Youtube"
|
||
target="_blank" rel="noopener noreferrer"><svg version="1.1" xmlns="http://www.w3.org/2000/svg"
|
||
xmlns:xlink="http://www.w3.org/1999/xlink" x="0px" y="0px" viewBox="0 0 249 249"
|
||
style="enable-background:new 0 0 249 249;" xml:space="preserve">
|
||
<title>SM-Youtube</title>
|
||
<style type="text/css">
|
||
.st4 {
|
||
fill: none;
|
||
stroke: #FFFFFF;
|
||
stroke-width: 8;
|
||
stroke-miterlimit: 10;
|
||
}
|
||
|
||
.st5 {
|
||
fill: #FFFFFF;
|
||
}
|
||
</style>
|
||
<circle class="st4" cx="124.2" cy="123.4" r="108.2"></circle>
|
||
<g transform="translate(0,-952.36218)">
|
||
<path class="st5"
|
||
d="M88.4,1037.4c-10.4,0-18.7,8.3-18.7,18.7v40.1c0,10.4,8.3,18.7,18.7,18.7h72.1c10.4,0,18.7-8.3,18.7-18.7
|
||
v-40.1c0-10.4-8.3-18.7-18.7-18.7H88.4z M115.2,1058.8l29.4,17.4l-29.4,17.4V1058.8z"></path>
|
||
</g>
|
||
</svg></a></li>
|
||
</ul>
|
||
</div>
|
||
<div class="col-lg-3 col-12">
|
||
<p class="address_footer text-white">National Library of Medicine<br>
|
||
<a href="https://www.google.com/maps/place/8600+Rockville+Pike,+Bethesda,+MD+20894/@38.9959508,-77.101021,17z/data=!3m1!4b1!4m5!3m4!1s0x89b7c95e25765ddb:0x19156f88b27635b8!8m2!3d38.9959508!4d-77.0988323"
|
||
class="text-white" target="_blank" rel="noopener noreferrer">8600 Rockville Pike<br>
|
||
Bethesda, MD 20894</a></p>
|
||
</div>
|
||
<div class="col-lg-3 col-12 centered-lg">
|
||
<p><a href="https://www.nlm.nih.gov/web_policies.html" class="text-white">Web Policies</a><br>
|
||
<a href="https://www.nih.gov/institutes-nih/nih-office-director/office-communications-public-liaison/freedom-information-act-office"
|
||
class="text-white">FOIA</a><br>
|
||
<a href="https://www.hhs.gov/vulnerability-disclosure-policy/index.html" class="text-white" id="vdp">HHS Vulnerability Disclosure</a></p>
|
||
</div>
|
||
<div class="col-lg-3 col-12 centered-lg">
|
||
<p><a class="supportLink text-white" href="https://support.nlm.nih.gov/">Help</a><br>
|
||
<a href="https://www.nlm.nih.gov/accessibility.html" class="text-white">Accessibility</a><br>
|
||
<a href="https://www.nlm.nih.gov/careers/careers.html" class="text-white">Careers</a></p>
|
||
</div>
|
||
</div>
|
||
<div class="row">
|
||
<div class="col-lg-12 centered-lg">
|
||
<nav class="bottom-links">
|
||
<ul class="mt-3">
|
||
<li>
|
||
<a class="text-white" href="//www.nlm.nih.gov/">NLM</a>
|
||
</li>
|
||
<li>
|
||
<a class="text-white"
|
||
href="https://www.nih.gov/">NIH</a>
|
||
</li>
|
||
<li>
|
||
<a class="text-white" href="https://www.hhs.gov/">HHS</a>
|
||
</li>
|
||
<li>
|
||
<a
|
||
class="text-white" href="https://www.usa.gov/">USA.gov</a>
|
||
</li>
|
||
</ul>
|
||
</nav>
|
||
</div>
|
||
</div>
|
||
</div>
|
||
</section>
|
||
</footer>
|
||
<!-- ========== END FOOTER ========== -->
|
||
<!-- javascript to inject NWDS meta tags. Note: value of nwds_version is updated by "npm version" command -->
|
||
|
||
<script type="text/javascript">
|
||
var nwds_version = "1.2.3";
|
||
|
||
var meta_nwds_ver = document.createElement('meta');
|
||
meta_nwds_ver.name = 'ncbi_nwds_ver';
|
||
meta_nwds_ver.content = nwds_version;
|
||
document.getElementsByTagName('head')[0].appendChild(meta_nwds_ver);
|
||
|
||
var meta_nwds = document.createElement('meta');
|
||
meta_nwds.name = 'ncbi_nwds';
|
||
meta_nwds.content = 'yes';
|
||
document.getElementsByTagName('head')[0].appendChild(meta_nwds);
|
||
|
||
var alertsUrl = "/core/alerts/alerts.js";
|
||
if (typeof ncbiBaseUrl !== 'undefined') {
|
||
alertsUrl = ncbiBaseUrl + alertsUrl;
|
||
}
|
||
</script>
|
||
|
||
</div>
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
<!-- jQuery with plugins -->
|
||
|
||
|
||
<script src="https://cdn.ncbi.nlm.nih.gov/pubmed/1aadf23f-d23c-47f2-9ae5-722feb08e2c5/CACHE/js/output.293fbf76aa18.js"></script>
|
||
|
||
|
||
|
||
|
||
<!-- Project base scripts -->
|
||
|
||
<script src="https://cdn.ncbi.nlm.nih.gov/pubmed/1aadf23f-d23c-47f2-9ae5-722feb08e2c5/CACHE/js/output.550e9c8906a2.js"></script>
|
||
|
||
|
||
<script>
|
||
ncbi.awesome.basePage.init({
|
||
userInfo: {
|
||
isLoggedIn: false,
|
||
username: "",
|
||
loginUrl: "https://account.ncbi.nlm.nih.gov/?back_url=https%3A%2F%2Fpubmed.ncbi.nlm.nih.gov%2Fdisclaimer%2F",
|
||
logoutUrl: "https://www.ncbi.nlm.nih.gov/account/signout/?back_url=https%3A//pubmed.ncbi.nlm.nih.gov/disclaimer/"
|
||
},
|
||
baseUrl: 'https://www.ncbi.nlm.nih.gov',
|
||
noSessionCookieName: "pm-ns",
|
||
searchIdCookieName: "pm-sid",
|
||
adjNavSearchIdCookieName: "pm-adjnav-sid",
|
||
searchFormSubmittedCookieName: "pm-sfs",
|
||
isOnSearchPageCookieName: "pm-iosp",
|
||
backToSearchCookieName: "pm-btsl",
|
||
clinicalSeeAllCookieName: "pm-csa",
|
||
jsCookieDomain: "pubmed.ncbi.nlm.nih.gov",
|
||
userShareRequestFailed: "",
|
||
noSharedSettings: "myncbi_no_shared_settings",
|
||
noSharedAccount: "myncbi_no_shared_account"
|
||
});
|
||
</script>
|
||
|
||
<script type="module">
|
||
import dismissableNCBIAlert from "https://cdn.ncbi.nlm.nih.gov/pubmed/1aadf23f-d23c-47f2-9ae5-722feb08e2c5/core/dismissable-ncbi-alert.js";
|
||
|
||
jQuery.getScript("https://www.ncbi.nlm.nih.gov/core/alerts/alerts.js", function () {
|
||
galert(['body > *:last-child']);
|
||
dismissableNCBIAlert();
|
||
}).fail(function() {
|
||
});
|
||
</script>
|
||
|
||
|
||
<script defer type="text/javascript" src="https://cdn.ncbi.nlm.nih.gov/core/pinger/pinger.js"> </script>
|
||
|
||
|
||
|
||
|
||
|
||
|
||
<script src="https://cdn.ncbi.nlm.nih.gov/pubmed/1aadf23f-d23c-47f2-9ae5-722feb08e2c5/CACHE/js/output.2fc0b2e7bc06.js"></script>
|
||
|
||
<script>
|
||
ncbi.awesome.contentPage.init({
|
||
baseSuggestionsUrl: "/suggestions/",
|
||
searchIdCookieName: "pm-sid",
|
||
adjNavSearchIdCookieName: "pm-adjnav-sid",
|
||
searchFormSubmittedCookieName: "pm-sfs",
|
||
jsCookieDomain: "pubmed.ncbi.nlm.nih.gov"
|
||
});
|
||
</script>
|
||
|
||
</body>
|
||
</html> |