nih-gov/www.ncbi.nlm.nih.gov/projects/linkout/doc/about.html

647 lines
28 KiB
HTML

<!DOCTYPE html>
<html lang="en">
<head >
<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">
<!-- Stylesheets -->
<link rel="stylesheet" href="/projects/linkout/doc/css/css1.css" type="text/css">
<link rel="stylesheet" href="/projects/linkout/doc/css/css2.css" type="text/css">
<link rel="stylesheet" href="/projects/linkout/doc/css/css3.css" type="text/css">
<link rel="stylesheet" href="/projects/linkout/doc/css/css4.css" type="text/css">
<link rel="stylesheet" href="/projects/linkout/doc/css/css5.css" type="text/css">
<link rel="stylesheet" href="https://maxcdn.bootstrapcdn.com/font-awesome/4.7.0/css/font-awesome.min.css"/>
<link type="text/css" href="/projects/linkout/doc/css/docs.css" rel="stylesheet" />
<link type="text/css" href="/projects/linkout/doc/css/about.css" rel="stylesheet" />
<title>About LinkOut - NCBI</title>
<!-- Favicons -->
<link rel="shortcut icon" type="image/ico" href="https://www.ncbi.nlm.nih.gov/coreutils/nwds/img/favicons/favicon.ico" />
<link rel="icon" type="image/png" href="https://www.ncbi.nlm.nih.gov/coreutils/nwds/img/favicons/favicon.png" />
<link rel="icon" type="image/png" sizes="192x192" href="https://www.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://www.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://www.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://www.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://www.ncbi.nlm.nih.gov/coreutils/nwds/img/favicons/favicon-144.png">
<!-- Logging params: Pinger defaults -->
<meta name="ncbi_app" content="pmc-linkout" />
<meta name="ncbi_db" content="linkout" />
<meta name="ncbi_pdid" content="documentation" />
<!-- Logging params: Pinger custom -->
<meta name="title" content="About LinkOut - NCBI">
<meta name="og:type" content="website"/>
<meta name="og:site_name" content="NCBI LinkOut"/>
<script>
var ncbiBaseUrl = "https://www.ncbi.nlm.nih.gov";
var useOfficialGovtHeader = true;
</script>
<style>
@media screen and (min-width:951px) {
.pmc-header__control {
margin-top:0
}
}
#main a.h3,
a h1, a h2, a h3, a h4, a h5, #main .usa-width-one-third a.align-center > h3 {
text-decoration: none;
}
.usa-row { overflow: hidden; width:100%; margin-bottom: .1em;}
.usa-grid, .usa-grid-full {
max-width: 1040px;
margin-left: auto;
margin-right: auto;
}
#main .main-menu {
background-color: #ffffff;
position: relative;
z-index:2000;
}
#main .main-menu h1 {
margin:.2em .5em;
display:inline-block;
}
#main .main-menu h1 a {
text-decoration: none;
color:#212121;
}
#main .main-menu h1 a:visited {
color:#212121;
}
#main .main-menu h1 sup {
font-weight: 100;
font-size: 0.6em;
margin-left:3px;
}
#main nav {
display: inline-block;
float:right;
}
#main .main-menu ul {
list-style: none;
list-style-image: none;
margin:0;
}
#main .main-menu ul a:link, #main .main-menu ul a:visited {
color:#212121;
text-decoration:none;
font-weight: bold;
line-height: 4;
padding: 0 15px;
display: inline-block;
width:100%;
}
#main .main-menu ul li {
display: inline-block;
margin: 0;
padding:0;
}
#main .main-menu ul li:before {
display:none;
}
#main .main-menu ul li:hover {
background-color: #fff;
}
/* Responsive menu styles */
button.menu-btn {
margin-top: 1em;
background-color: transparent;
color: #212121;
width:inherit;
display:none;
}
button.menu-btn:active, button:hover, [type="button"]:hover {
background-color: transparent;
color: #212121;
width:auto;
}
#main .main-menu .responsive-menu {
display:inline-block;
float:right;
}
.expand {
display: block !important;
}
h1,
h2,
h3,
h4,
h5,
h6 {
clear:both;
font-family: "Source Sans Pro", "Helvetica", "Arial", sans-serif;
line-height:1.3;
margin-bottom:.5em;
margin-top:1.5em
}
a:visited {
color:#0071bc;
}
</style>
</head>
<body>
<div id="main">
<section class="pmc-alerts">
</section>
<button
class="back-to-top back-to-top--bottom"
data-ga-category="pagination"
data-ga-action="back_to_top">
Back to Top
</button>
<a class="usa-skipnav" href="#main-content">Skip to main content</a>
<!-- ========== BEGIN HEADER ========== -->
<section class="usa-banner" style="display: none;">
<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-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="https://www.ncbi.nlm.nih.gov/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="https://www.ncbi.nlm.nih.gov/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="https://www.ncbi.nlm.nih.gov/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="https://www.ncbi.nlm.nih.gov/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="https://www.ncbi.nlm.nih.gov/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 ========== -->
<div class="usa-grid">
<div class="usa-width-one-whole">
<div class="main-menu">
<h1><a href="/projects/linkout/index.html"><img src="/projects/linkout/doc/images/linkouticonsmall.jpg" alt="LinkOut icon" width="237" height="89"></a></h1>
<button class="menu-btn align-right" type="button" aria-controls="nav">
<span>Menu &dtrif;</span>
</button>
<nav class="responsive-menu">
<ul class="usa-unstyled-list">
<li><a href="/projects/linkout/doc/about.html">About</a></li>
<li><a href="/projects/linkout/doc/libraries.html">For Libraries</a></li>
<li><a href="/projects/linkout/doc/fulltext.html">For Full Text Providers</a></li>
<li><a href="/projects/linkout/doc/databases.html">For Other Providers</a></li>
</ul>
</nav>
</div>
</div>
</div>
<div class="usa-overlay"></div>
<main id="main-content" class="usa-grid usa-layout-docs usa-main pmc__docs--main-bottom">
<article class="usa-width-one-whole usa-layout-docs-main_content">
<!-- div id="main" class="usa-grid-full" -->
<section class="about usa-grid">
<div class="usa-row">
<h2>About LinkOut</h2>
<p>LinkOut is a service that allows full text providers, scientific databases and other authoritative online resources to link directly from NCBI databases to a wide range of information and other services beyond the NCBI digital ecosystem. For libraries, LinkOut's <a href="https://www.ncbi.nlm.nih.gov/books/NBK3803/">Outside Tool</a> service connects your patrons directly to the best way to access your full text holdings by connecting your Library's link resolver service to every PubMed abstract.</p>
<p>LinkOut aims to facilitate access to relevant online resources in order to extend and clarify information found in NCBI databases. When accessing a LinkOut link from NCBI database records, no additional searching or navigation should be necessary to access the relevant information.</p>
<p>Send questions or comments to <a href="mailto:linkout@ncbi.nlm.nih.gov">LinkOut.</a></p>
<h3>Viewing LinkOut Links in NCBI Databases</h3>
<ul>
<li> <p><a href="https://www.ncbi.nlm.nih.gov/books/NBK3810/#using.Viewing_LinkOut_Reso"target="_blank">Viewing LinkOut Resources in NCBI Databases.</a></p></li>
<li> <p><a href="https://www.ncbi.nlm.nih.gov/books/NBK3810/#using.Viewing_Links_as_Icons_in_PubMed"target="_blank">Viewing Links as Icons in PubMed.</a></p></li>
<li><p><a href="https://www.ncbi.nlm.nih.gov/books/NBK3810/#using.Obtaining_the_Full_Text_of_an_Arti" target="_blank">Obtaining the Full Text of Articles.</a></p></li>
</ul>
</section>
<div class="usa-grid-full pmc__docs-modified"><h6>Last modified: 2023 June 29</h6></div>
</article>
</main>
<!-- ========== 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
data-name="Layer 1" xmlns="http://www.w3.org/2000/svg" viewBox="0 0 300 300">
<defs>
<style>
.cls-11 {
fill: #737373;
}
</style>
</defs>
<title>Twitter</title>
<path class="cls-11"
d="M250.11,105.48c-7,3.14-13,3.25-19.27.14,8.12-4.86,8.49-8.27,11.43-17.46a78.8,78.8,0,0,1-25,9.55,39.35,39.35,0,0,0-67,35.85,111.6,111.6,0,0,1-81-41.08A39.37,39.37,0,0,0,81.47,145a39.08,39.08,0,0,1-17.8-4.92c0,.17,0,.33,0,.5a39.32,39.32,0,0,0,31.53,38.54,39.26,39.26,0,0,1-17.75.68,39.37,39.37,0,0,0,36.72,27.3A79.07,79.07,0,0,1,56,223.34,111.31,111.31,0,0,0,116.22,241c72.3,0,111.83-59.9,111.83-111.84,0-1.71,0-3.4-.1-5.09C235.62,118.54,244.84,113.37,250.11,105.48Z">
</path>
</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 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">
.st20 {
fill: #FFFFFF;
}
.st30 {
fill: none;
stroke: #FFFFFF;
stroke-width: 8;
stroke-miterlimit: 10;
}
</style>
<title>SM-Twitter</title>
<g>
<g>
<g>
<path class="st20" d="M192.9,88.1c-5,2.2-9.2,2.3-13.6,0.1c5.7-3.4,6-5.8,8.1-12.3c-5.4,3.2-11.4,5.5-17.6,6.7
c-10.5-11.2-28.1-11.7-39.2-1.2c-7.2,6.8-10.2,16.9-8,26.5c-22.3-1.1-43.1-11.7-57.2-29C58,91.6,61.8,107.9,74,116
c-4.4-0.1-8.7-1.3-12.6-3.4c0,0.1,0,0.2,0,0.4c0,13.2,9.3,24.6,22.3,27.2c-4.1,1.1-8.4,1.3-12.5,0.5c3.6,11.3,14,19,25.9,19.3
c-11.6,9.1-26.4,13.2-41.1,11.5c12.7,8.1,27.4,12.5,42.5,12.5c51,0,78.9-42.2,78.9-78.9c0-1.2,0-2.4-0.1-3.6
C182.7,97.4,189.2,93.7,192.9,88.1z"></path>
</g>
</g>
<circle class="st30" cx="124.4" cy="128.8" r="108.2"></circle>
</g>
</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=https://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 = "1.1.9-2";
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 = "https://www.ncbi.nlm.nih.gov/core/alerts/alerts.js";
if (typeof ncbiBaseUrl !== 'undefined') {
alertsUrl = ncbiBaseUrl + alertsUrl;
}
</script>
<!-- JavaScript -->
<script src="https://www.ncbi.nlm.nih.gov/pmc/static/CACHE/js/output.0f72d6a64937.js"></script>
<script src="https://code.jquery.com/jquery-3.5.0.min.js"
integrity="sha256-xNzN2a4ltkB44Mc/Jz3pT4iU1cmeR0FkXs4pru/JxaQ="
crossorigin="anonymous">
</script>
<script>
var fallbackJquery = "https://www.ncbi.nlm.nih.gov/pmc/static/base/js/jquery-3.5.0.min.js";
window.jQuery || document.write("<script src=" + fallbackJquery + ">\x3C/script>")
</script>
<script src="https://www.ncbi.nlm.nih.gov/pmc/static/CACHE/js/output.a212a9fcf845.js"></script>
<script src="https://www.ncbi.nlm.nih.gov/pmc/static/CACHE/js/output.7999321d1aac.js"></script>
<script src="https://www.ncbi.nlm.nih.gov/pmc/static/CACHE/js/output.7ca436b2ea51.js"></script>
<script src="https://www.ncbi.nlm.nih.gov/pmc/static/CACHE/js/output.f8422046fbe0.js"></script>
<script src="https://www.ncbi.nlm.nih.gov/pmc/static/CACHE/js/output.ff40c7d85ff8.js"></script>
<script src="https://www.ncbi.nlm.nih.gov/pmc/static/CACHE/js/output.a6a84a0ad361.js"></script>
<script type="text/javascript" src="https://www.ncbi.nlm.nih.gov/pmc/static/bundles/base/base.54110350c77632754ed7.js" ></script>
<script type="text/javascript" src="https://www.ncbi.nlm.nih.gov/pmc/static/bundles/docs/docs.2bd9617ce3a0022e5b51.js" ></script>
<script type="text/javascript" src="https://www.ncbi.nlm.nih.gov/core/pinger/pinger.js"> </script>
</div>
</body>
</html>