498 lines
24 KiB
HTML
498 lines
24 KiB
HTML
|
||
|
||
|
||
<!doctype html>
|
||
<html lang="en">
|
||
<head>
|
||
<meta name="viewport" content="width=device-width, initial-scale=1, shrink-to-fit=no">
|
||
<meta http-equiv="X-UA-Compatible" content="IE=edge" />
|
||
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
|
||
<meta http-equiv="X-UA-Compatible" content="IE=edge,chrome=1"/>
|
||
<link rel="preconnect" href="https://fonts.googleapis.com">
|
||
<link rel="preconnect" href="https://fonts.gstatic.com" crossorigin>
|
||
<link href="https://fonts.googleapis.com/css2?family=Roboto:wght@100;300;400;500;700&display=swap" rel="stylesheet">
|
||
<link rel="stylesheet" href="https://use.fontawesome.com/releases/v5.0.10/css/all.css" integrity="sha384-+d0P83n9kaQMCwj8F4RJB66tzIwOKmrdb46+porD/OvrJ+37WqIM7UoBtwHO6Nlg" crossorigin="anonymous">
|
||
<link rel="schema.DC" href="http://purl.org/dc/elements/1.1/" title="The Dublin Core metadata Element Set" />
|
||
|
||
<link rel="stylesheet" href="/home_assets/uswds/css/styles.css">
|
||
|
||
<title>MEDLINE®: Number of Citations to English Language Articles; Number of Citations Containing Abstracts<br /> (as of January 2023)*</title>
|
||
<link rel="schema.DC" href="http://purl.org/dc/elements/1.1/" title="The Dublin Core metadata Element Set" />
|
||
<meta name="DC.Title" content="MEDLINE®: Number of Citations to English Language Articles; Number of Citations Containing Abstracts1 (as of January 2023)*" />
|
||
|
||
<meta name="DC.Publisher" content="U.S. National Library of Medicine" />
|
||
<meta name="DC.Date.Issued" content="2003-06-25" />
|
||
<meta name="DC.Date.Modified" content="2024-05-17" />
|
||
<meta name="NLMDC.Date.LastReviewed" content="2023-05-27" />
|
||
<meta name="NLM.Contact.Email" content="NLMUSCDHDSCVSWeb@mail.nih.gov" />
|
||
<meta name="DC.Type" content="Procedures" />
|
||
<meta name="NLM.Permanence.Level" content="Permanence Not Guaranteed" />
|
||
<meta name="DC.Rights" content="Public Domain" />
|
||
<meta name="DC.Language" content="eng" />
|
||
|
||
|
||
|
||
<style type ="text/css">
|
||
|
||
|
||
|
||
#body td
|
||
|
||
{
|
||
|
||
text-align:right;
|
||
|
||
}
|
||
|
||
|
||
|
||
</style>
|
||
|
||
|
||
<!-- Google Tag Manager --><script>(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push(
|
||
{'gtm.start': new Date().getTime(),event:'gtm.js'}
|
||
);var f=d.getElementsByTagName(s)[0],j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src='//www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);})(window,document,'script','dataLayer','GTM-MT6MLL');</script>
|
||
<!-- End Google Tag Manager -->
|
||
</head>
|
||
<body>
|
||
<!-- Google Tag Manager -->
|
||
<noscript><iframe src="//www.googletagmanager.com/ns.html?id=GTM-MT6MLL" height="0" width="0" style="display:none;visibility:hidden" title="googletagmanager"></iframe></noscript>
|
||
<!-- End Google Tag Manager -->
|
||
<!-- TOP NAV -->
|
||
<a class="usa-skipnav" href="#main">Skip to main content</a>
|
||
<div class="usa-banner site-banner" aria-label="Official government website">
|
||
<div class="usa-accordion">
|
||
<header class="usa-banner__header">
|
||
<div class="usa-banner__inner">
|
||
<div class="grid-col-auto"> <img class="usa-banner__header-flag" src="https://assets.nlm.nih.gov/uswds/img/us_flag_small.png" alt="U.S. flag"/> </div>
|
||
<div class="grid-col-fill tablet:grid-col-auto">
|
||
<p class="usa-banner__header-text"> An official website of the United States government </p>
|
||
<p class="usa-banner__header-action" aria-hidden="true"> Here’s how you know </p>
|
||
</div>
|
||
<button class="usa-accordion__button usa-banner__button" aria-expanded="false" aria-controls="gov-banner"> <span class="usa-banner__button-text">Here’s how you know</span> </button>
|
||
</div>
|
||
</header>
|
||
<div class="usa-banner__content usa-accordion__content" id="gov-banner">
|
||
<div class="grid-row grid-gap-lg">
|
||
<div class="usa-banner__guidance tablet:grid-col-6"> <img class="usa-banner__icon usa-media-block__img" src="https://assets.nlm.nih.gov/uswds/img/icon-dot-gov.svg" role="img" alt="" aria-hidden="true"/>
|
||
<div class="usa-media-block__body">
|
||
<p> <strong> Official websites use .gov </strong> <br />
|
||
A <strong>.gov</strong> website belongs to an official government
|
||
organization in the United States. </p>
|
||
</div>
|
||
</div>
|
||
<div class="usa-banner__guidance tablet:grid-col-6"> <img class="usa-banner__icon usa-media-block__img" src="https://assets.nlm.nih.gov/uswds/img/icon-https.svg" role="img" alt="" aria-hidden="true"/>
|
||
<div class="usa-media-block__body">
|
||
<p> <strong> Secure .gov websites use HTTPS </strong> <br />
|
||
A <strong>lock</strong> ( <span class="icon-lock">
|
||
<svg xmlns="http://www.w3.org/2000/svg" width="52" height="64" viewBox="0 0 52 64" class="usa-banner__lock-image" role="img" aria-labelledby="banner-lock-title-default banner-lock-description-default" focusable="false">
|
||
<title id="banner-lock-title-default">Lock</title>
|
||
<desc id="banner-lock-description-default">A locked padlock</desc>
|
||
<path fill="#000000" fill-rule="evenodd" d="M26 0c10.493 0 19 8.507 19 19v9h3a4 4 0 0 1 4 4v28a4 4 0 0 1-4 4H4a4 4 0 0 1-4-4V32a4 4 0 0 1 4-4h3v-9C7 8.507 15.507 0 26 0zm0 8c-5.979 0-10.843 4.77-10.996 10.712L15 19v9h22v-9c0-6.075-4.925-11-11-11z"/>
|
||
</svg>
|
||
</span> ) or <strong>https://</strong> means you’ve safely connected to the .gov website. Share sensitive information only on official, secure websites. </p>
|
||
</div>
|
||
</div>
|
||
</div>
|
||
</div>
|
||
</div>
|
||
</div>
|
||
|
||
<!-- HEADER -->
|
||
<header id="siteheader" class="usa-header usa-header--basic">
|
||
<div class="usa-nav-container tablet:padding-x-4 mobile-lg:padding-x-2 padding-y-1">
|
||
<div class="grid-row padding-y-105">
|
||
<div class="grid-col-8 desktop:grid-col-4 tablet-lg:grid-col-4 tablet:grid-col-6"> <a href="https://www.nlm.nih.gov/"> <img src="https://assets.nlm.nih.gov/uswds/img/NLM_White.png" alt="NLM logo" class="logo margin-top-1"> </a> </div>
|
||
<div class="desktop:grid-col-4 desktop:grid-offset-4 tablet-lg:grid-col-6 tablet-lg:grid-offset-2 tablet:grid-col-6 grid-col-12">
|
||
<form class="usa-search desktop:margin-top-2 tablet:margin-top-2 mobile:margin-top-1" role="search" data-gtm-form-interact-id="0" method="get" action="//vsearch.nlm.nih.gov/vivisimo/cgi-bin/query-meta" target="_self" name="searchForm" id="searchForm2">
|
||
<input class="usa-input ui-autocomplete-input" aria-label="Search" type="search" name="query" data-gtm-form-interact-field-id="0" id="search2" autocomplete="off" placeholder="Search NLM" >
|
||
<input type="hidden" name="v:project" value="nlm-main-website">
|
||
<button class="usa-button border border-top border-bottom border-right border-white" role="button" aria-label="Search" type="submit"> <span class="usa-search__submit-text"> <i class="fas fa-search"></i> </span> </button>
|
||
</form>
|
||
</div>
|
||
</div>
|
||
</div>
|
||
</header>
|
||
<div class="bg-secondary insertCOOP">
|
||
<div class="usa-nav-container">
|
||
<div class="usa-navbar ">
|
||
<button class="usa-menu-btn">Menu</button>
|
||
</div>
|
||
<nav aria-label="Primary navigation" class="usa-nav">
|
||
<button class="usa-nav__close"><img src="https://assets.nlm.nih.gov/uswds/img/close.svg" alt="close"></button>
|
||
<ul class="usa-nav__primary usa-accordion insertNav">
|
||
|
||
<li class="usa-nav__primary-item desktop-lg:margin-x-5 desktop:margin-x-3 tablet:margin-x-0">
|
||
<button type="button" class="usa-accordion__button usa-nav__link usa-current" aria-expanded="false" aria-controls="basic-nav-section-one"> <span>Products and Services <i class="fas fa-caret-down margin-left-05"></i> </span> </button>
|
||
<ul id="basic-nav-section-one" class="usa-nav__submenu bg-secondary" hidden="">
|
||
<li class="usa-nav__submenu-item"> <a href="//eresources.nlm.nih.gov/nlm_eresources/"><span>All Products and Services</span></a> </li>
|
||
<li class="usa-nav__submenu-item"> <a href="//clinicaltrials.gov/"><span>ClinicalTrials.gov</span></a> </li>
|
||
<li class="usa-nav__submenu-item"> <a href="//collections.nlm.nih.gov/"><span>Digital Collections</span></a> </li>
|
||
<li class="usa-nav__submenu-item"> <a href="//catalog.nlm.nih.gov"><span>LocatorPlus Catalog</span></a> </li>
|
||
<li class="usa-nav__submenu-item"> <a href="//meshb.nlm.nih.gov/search"><span>Medical Subject Headings (MeSH)</span></a> </li>
|
||
<li class="usa-nav__submenu-item"> <a href="//medlineplus.gov/"><span>MedlinePlus</span></a> </li>
|
||
<li class="usa-nav__submenu-item"> <a href="//pubmed.ncbi.nlm.nih.gov/"><span>PubMed/MEDLINE</span></a> </li>
|
||
<li class="usa-nav__submenu-item"> <a href="//uts.nlm.nih.gov/uts/"><span>Unified Medical Language System (UMLS)</span></a> </li>
|
||
</ul>
|
||
</li>
|
||
<li class="usa-nav__primary-item desktop-lg:margin-x-5 desktop:margin-x-3 tablet:margin-x-0">
|
||
<button type="button" class="usa-accordion__button usa-nav__link usa-current" aria-expanded="false" aria-controls="basic-nav-section-two"> <span> Resources for You <i class="fas fa-caret-down margin-left-05"></i></span> </button>
|
||
<ul id="basic-nav-section-two" class="usa-nav__submenu bg-secondary" hidden="">
|
||
<li class="usa-nav__submenu-item"> <a href="/portals/researchers.html"><span>For Researchers</span></a> </li>
|
||
<li class="usa-nav__submenu-item"> <a href="/portals/publishers.html "><span>For Publishers</span></a> </li>
|
||
<li class="usa-nav__submenu-item"> <a href="/portals/librarians.html"><span>For Librarians</span></a> </li>
|
||
<li class="usa-nav__submenu-item"> <a href="/training.html "><span>For Educators/Trainers </span></a> </li>
|
||
<li class="usa-nav__submenu-item"> <a href="/portals/healthcare.html"><span>For Health care Professionals</span></a> </li>
|
||
<li class="usa-nav__submenu-item"> <a href="/portals/public.html "><span>For the Public</span></a> </li>
|
||
</ul>
|
||
</li>
|
||
<li class="usa-nav__primary-item desktop-lg:margin-x-5 desktop:margin-x-3 tablet:margin-x-0">
|
||
<button type="button" class="usa-accordion__button usa-nav__link usa-current" aria-expanded="false" aria-controls="basic-nav-section-three"> <span>Explore NLM <i class="fas fa-caret-down margin-left-05"></i> </span> </button>
|
||
<ul id="basic-nav-section-three" class="usa-nav__submenu bg-secondary" hidden="">
|
||
<li class="usa-nav__submenu-item"> <a href="/about/index.html"><span>About the Library</span></a> </li>
|
||
<li class="usa-nav__submenu-item"> <a href="/about/visitor.html"><span>Visit the Library</span></a> </li>
|
||
<li class="usa-nav__submenu-item"> <a href="/hmd/index.html"><span>History of Medicine</span></a> </li>
|
||
<li class="usa-nav__submenu-item"> <a href="/about/org.html"><span>NLM by Organization</span></a> </li>
|
||
<li class="usa-nav__submenu-item"> <a href="/news/newsandevents.html"><span>News, Events, and Updates</span></a> </li>
|
||
</ul>
|
||
</li>
|
||
<li class="usa-nav__primary-item desktop-lg:margin-x-5 desktop:margin-x-3 tablet:margin-x-0">
|
||
<button type="button" class="usa-accordion__button usa-nav__link usa-current" aria-expanded="false" aria-controls="basic-nav-section-four"> <span> Grants and Research <i class="fas fa-caret-down margin-left-05"></i> </span> </button>
|
||
<ul id="basic-nav-section-four" class="usa-nav__submenu bg-secondary" hidden="">
|
||
<li class="usa-nav__submenu-item"> <a href="/ep/index.html"><span>NLM Extramural Programs</span></a> </li>
|
||
<li class="usa-nav__submenu-item"> <a href="/research/index.html"><span>NLM Intramural Research Program</span></a> </li>
|
||
<li class="usa-nav__submenu-item"> <a href="https://www.ncbi.nlm.nih.gov/"><span>National Center for Biotechnology Information</span></a> </li>
|
||
<li class="usa-nav__submenu-item"> <a href="//lhncbc.nlm.nih.gov/"><span>Lister Hill National Center for Biomedical Communications</span></a> </li>
|
||
</ul>
|
||
</li>
|
||
|
||
</ul>
|
||
</nav>
|
||
</div>
|
||
</div>
|
||
|
||
<!-- End of TOP NAV -->
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
<!-- Breadcrumbs -->
|
||
<div class="grid-container">
|
||
<nav class="usa-breadcrumb usa-breadcrumb--wrap padding-top-1" aria-label="Breadcrumbs">
|
||
<ol class="usa-breadcrumb__list">
|
||
<li class="usa-breadcrumb__list-item"><a href="/index.html" class="usa-breadcrumb__link"><span>Home</span></a></li>
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
<li class="usa-breadcrumb__list-item"><a href="/bsd/pmresources.html" class="usa-breadcrumb__link"><span>MEDLINE/PubMed Resources</span></a></li>
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
</ol>
|
||
</nav>
|
||
</div>
|
||
<!-- End Breadcrumbs -->
|
||
|
||
|
||
|
||
|
||
|
||
<main class="padding-bottom-5" id="main">
|
||
<div class="grid-container">
|
||
|
||
|
||
|
||
<div class="grid-row">
|
||
|
||
<div class="grid-col">
|
||
|
||
|
||
|
||
<div class="h1">MEDLINE<sup>®</sup>: Number of Citations to English Language Articles; Number of Citations Containing Abstracts<sup><a href="#footnote">1</a></sup> (as of January 2023)*</div>
|
||
|
||
|
||
|
||
</div>
|
||
|
||
|
||
|
||
|
||
|
||
</div>
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
|
||
<p></p>
|
||
|
||
<table class ="usa-table">
|
||
|
||
<!-- Paste data from Excel template below -->
|
||
|
||
<tr>
|
||
<th>Years of Publication</th>
|
||
<th>Total # Records</th>
|
||
<th># English (%)</th>
|
||
<th># Non-English (%)</th>
|
||
<th># with Abstracts (%)<sup><a href="#footnoteA">2</a></sup></th>
|
||
</tr>
|
||
|
||
<!-- ** Not to include the forthcoming year (a single year) in first row, that's the year the update actually takes place. **-->
|
||
|
||
<tr>
|
||
<td style="text-align:left;">2020-2023*</td>
|
||
<td>3,049,430</td>
|
||
<td>2,962,148 (97.14%)</td>
|
||
<td> 87,282 (2.86%)</td>
|
||
<td> 2,683,488 (88%)</td>
|
||
</tr>
|
||
|
||
<tr>
|
||
<td style="text-align:left;">2015-2019</td>
|
||
<td>4,360,235</td>
|
||
<td>4,170,061 (95.64%)</td>
|
||
<td> 190,174 (4.36%)</td>
|
||
<td>3,787,545 (86.87%)</td>
|
||
</tr>
|
||
|
||
<tr>
|
||
<td style="text-align:left;">2010-2014</td>
|
||
<td>4,040,526</td>
|
||
<td>3,757,636 (93.00%)</td>
|
||
<td>282,890 (7.00%)</td>
|
||
<td>3,423,519 (84.73%)</td>
|
||
</tr>
|
||
<tr>
|
||
<td style="text-align:left;">2005-2009</td>
|
||
<td>3,295,700</td>
|
||
<td>2,980,721 (90.44%)</td>
|
||
<td>314,988 (9.56%)</td>
|
||
<td>2,726,440 (82.73%)</td>
|
||
</tr>
|
||
<tr>
|
||
<td style="text-align:left;">2000-2004</td>
|
||
<td>2,641,289</td>
|
||
<td>2,355,827 (89.19%)</td>
|
||
<td>285,462 (10.81%)</td>
|
||
<td>2,078,540 (78.69%)</td>
|
||
</tr>
|
||
<tr>
|
||
<td style="text-align:left;">1995-1999</td>
|
||
<td>2,177,012</td>
|
||
<td>1,908,739 (87.68%)</td>
|
||
<td>268,273 (12.32%)</td>
|
||
<td>1,625,988 (74.69%)</td>
|
||
</tr>
|
||
<tr>
|
||
<td style="text-align:left;">1990-1994</td>
|
||
<td>1,974,087</td>
|
||
<td>1,651,986 (83.68%)</td>
|
||
<td>322,101 (16.32%)</td>
|
||
<td>1,430,390 (72.46%)</td>
|
||
</tr>
|
||
<tr>
|
||
<td style="text-align:left;">1985-1989</td>
|
||
<td>1,743,557</td>
|
||
<td>1,349,568 (77.40%)</td>
|
||
<td>393,989 (22.60%)</td>
|
||
<td>1,058,912 (60.73%)</td>
|
||
</tr>
|
||
|
||
<tr>
|
||
<td style="text-align:left;">1980-1984</td>
|
||
<td>1,439,126</td>
|
||
<td>1,068,926 (74.28%)</td>
|
||
<td>370,200 (25.72%) </td>
|
||
<td>716,239 (49.77%)</td>
|
||
</tr>
|
||
|
||
<tr>
|
||
<td style="text-align:left;">1975-1979</td>
|
||
<td>1,288,862</td>
|
||
<td>894,330 (69.39%)</td>
|
||
<td>394,532 (30.61%)</td>
|
||
<td>528,800 (41.03%)</td>
|
||
</tr>
|
||
|
||
<tr>
|
||
<td style="text-align:left;">1970-1974</td>
|
||
<td>1,105,850</td>
|
||
<td>693,084 (62.67%)</td>
|
||
<td>412,766 (37.33%)</td>
|
||
<td>37,190 (3.36%)</td>
|
||
</tr>
|
||
|
||
<tr>
|
||
<td style="text-align:left;">1965-1969</td>
|
||
<td>949,308</td>
|
||
<td>518,552 (54.62%)</td>
|
||
<td>430,756 (45.38%)</td>
|
||
<td>19,813 (2.09%)</td>
|
||
</tr>
|
||
|
||
<tr>
|
||
<td style="text-align:left;">1960-1964</td>
|
||
<td>645,162</td>
|
||
<td>314,568 (48.76%)</td>
|
||
<td>330,594 (51.24%)</td>
|
||
<td>8,261 (1.28%)</td>
|
||
</tr>
|
||
|
||
<tr>
|
||
<td style="text-align:left;">1955-1959</td>
|
||
<td>537,239</td>
|
||
<td>252,529 (47.00%)</td>
|
||
<td>284,710 (53.00%)</td>
|
||
<td>2,924 (0.54%)</td>
|
||
</tr>
|
||
|
||
<tr>
|
||
<td style="text-align:left;">1950-1954</td>
|
||
<td>505,212</td>
|
||
<td>230,055 (45.54%)</td>
|
||
<td>275,157 (54.46%)</td>
|
||
<td>1,504 (0.30%)</td>
|
||
</tr>
|
||
|
||
<tr>
|
||
<td style="text-align:left;">pre-1950</td>
|
||
<td>259,174</td>
|
||
<td>167,392 (64.59%)</td>
|
||
<td>91,782 (35.41%)</td>
|
||
<td>562 (0.22%)</td>
|
||
</tr>
|
||
|
||
<tr>
|
||
<td style="text-align:left;"><strong> Totals*** </strong></td>
|
||
<td> <strong> 30,011,769 </strong></td>
|
||
<td> <strong> 25,276,113 ( 84.22% ) </strong></td>
|
||
<td> <strong> 4,735,656 ( 15.78% ) </strong></td>
|
||
<td> <strong> 20,130,115 ( 67.07% ) </strong></td>
|
||
</tr>
|
||
|
||
|
||
<!-- Paste data from Excel template above -->
|
||
|
||
</table>
|
||
|
||
<p></p>
|
||
|
||
<p><sup><a name="footnote">1</a></sup>Includes author abstracts (in AB field), or abstracts written by someone other than the author or an indication that the author abstract is available in other languages (the latter two are in OAB, Other Abstract field).<br /><br />
|
||
|
||
<sup><a name="footnoteA">2</a></sup><a href="//www.nlm.nih.gov/bsd/policy/structured_abstracts.html">Structured Abstracts</a>: approximately 30% of abstracts added in recent years are structured abstracts.<br /><br />
|
||
|
||
<a name="footnote1">*</a>Derived from the <a href="//mbr.nlm.nih.gov/">2023 MEDLINE/PubMed Baseline</a> produced in January 2023.
|
||
|
||
<!--
|
||
[remove this section from footnote * per Sara] At that time, publication year 2016 was not complete and publication year 2017 had only 11 citations. Prior to the mid-November 2013.
|
||
|
||
Going forward, we will continue to derive these statistics from the MEDLINE/PubMed baselines produced annually in November from LHC program managed by Francois Lang. Compared to the 2014 statistics, there is a small decrease in the Number of Records counts for two reasons: a. using baseline data rather than PubMed searches (see also Note 1 below), and b. identifying and deleting duplicate citations in March 2014 (which mostly affected the counts prior to 1990).
|
||
-->
|
||
|
||
|
||
<br /><br />
|
||
|
||
<a name="footnote2">**</a>
|
||
As of December 2006, <a href=" //www.nlm.nih.gov/databases/databases_oldmedline.html">OLDMEDLINE</a> subset citations that have all of their original subject terms mapped to current MeSH are <a href="//www.nlm.nih.gov/pubs/techbull/so06/so06_oldmedline_status.html">included in MEDLINE</a>. There are more citations in PubMed with these older publication dates; some are PubMed status or "as supplied by publisher" status. As of the 2017 MEDLINE/PubMed baseline, all OLDMEDLINE subset citations were converted to MEDLINE status because every such citation was mapped to at least one current MeSH heading. In the future when NLM adds more OLDMEDLINE citations, there may be a period of time when the citations status equals OLDMEDLINE until NLM can map to current MeSH
|
||
<br /><br />
|
||
|
||
Notes: <br />
|
||
|
||
<ol>
|
||
<li>Typically a PubMed search will yield higher numbers, as NLM may have processed more completed citations since the baseline was produced for various reasons, e.g., time lag in receipt, or a new journal for indexing going back to volume 1, or data from back issues such as those deposited in PubMed Central, or from other sources. Also, PubMed includes both the print and electronic publication dates in a publication date search. Therefore, citations to articles published electronically and in print with 2 different publication dates will be retrieved in 2 different [dp] searches, thereby getting counted twice. For example, a paper published electronically in December 2013 and in print in January 2014 will be counted once in a 2013 [dp] search and again in a 2014 [dp] search.<br /></li>
|
||
|
||
<li>Counts are limited to the MEDLINE subset [sb] of PubMed and do not include out-of-scope citations. <br />
|
||
To search PubMed for the out-of-scope completed citations use: pubmednotmedline [sb]<br />
|
||
To search PubMed for MEDLINE excluding OLDMEDLINE subset citations, add <strong>NOT jsubsetom</strong> to your search; for example: 1965 [dp] AND medline [sb] NOT jsubsetom.<br />
|
||
</li>
|
||
|
||
<li>NLM began to include abstracts routinely in online citations in 1975. Abstracts in earlier years largely come from NLM collaborating partners and some projects to load data from back issues (such as from PubMed Central and other sources). When adding missing citations (gaps) in the OLDMEDLINE range of years (pre-1966), abstracts, if present in the original article, are now included.</li>
|
||
</ol>
|
||
|
||
|
||
|
||
|
||
|
||
|
||
<p class=”margin-top-5”><small>Last Reviewed: May 27, 2023</small></p>
|
||
|
||
</div>
|
||
</main>
|
||
|
||
<!-- FOOTER -->
|
||
<footer class="usa-footer__primary-section padding-top-5 padding-bottom-3 insertfooter">
|
||
|
||
<div class="grid-container">
|
||
<div class="grid-row">
|
||
<div class="desktop:grid-col-3 grid-col-6"> <a href="https://www.nlm.nih.gov/socialmedia/index.html">
|
||
<p class="text-white margin-bottom-1">Connect with NLM</p>
|
||
</a>
|
||
<ul class="social_media add-list-reset">
|
||
<li class="margin-right-05"><a href="https://www.facebook.com/nationallibraryofmedicine"><img class="bg-secondary" src="https://www.nlm.nih.gov/images/facebook.svg" alt="Facebook"></a></li>
|
||
<li class="margin-right-05"><a title="External link: please review our privacy policy." href="https://www.linkedin.com/company/national-library-of-medicine-nlm/"><img class="bg-secondary" src="//www.nlm.nih.gov/images/linkedin.svg" alt="LinkedIn"></a></li>
|
||
<li class="margin-right-05"><a title="External link: please review our privacy policy." href="https://twitter.com/NLM_NIH"><img src="https://www.nlm.nih.gov/images/twitter.svg" class="padding-1 bg-secondary" alt="Twitter"></a></li>
|
||
<li class="margin-right-05"><a title="External link: please review our privacy policy." href="https://www.youtube.com/user/NLMNIH"><img src="//www.nlm.nih.gov/images/youtube.svg" class="bg-secondary" alt="You Tube"></a></li>
|
||
<li class="margin-right-05"><a title="External link: please review our privacy policy." href="https://public.govdelivery.com/accounts/USNLMOCPL/subscriber/new?preferences=true"><img src="//www.nlm.nih.gov/images/mail.svg" class=" bg-secondary" alt="Government Delivery"></a></li>
|
||
</ul>
|
||
</div>
|
||
<div class="desktop:grid-col-3 grid-col-6">
|
||
<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"> 8600 Rockville Pike <br>
|
||
Bethesda, MD 20894 </a></p>
|
||
</div>
|
||
<div class="desktop:grid-col-3 grid-col-6">
|
||
<p><a href="/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">HHS Vulnerability Disclosure</a> </p>
|
||
</div>
|
||
<div class="desktop:grid-col-3 grid-col-6">
|
||
<p><a class="supportLink text-white" href="//support.nlm.nih.gov?from="> NLM Support Center </a> <br>
|
||
<a href="/accessibility.html" class="text-white"> Accessibility </a><br>
|
||
<a href="/careers/careers.html" class="text-white"> Careers </a></p>
|
||
</div>
|
||
</div>
|
||
<div class="grid-row">
|
||
<div class="grid-col-12">
|
||
<p class="text-center text-white"> <a class="text-white" href="//www.nlm.nih.gov/">NLM</a> | <a class="text-white" href="https://www.nih.gov/">NIH</a> | <a class="text-white" href="https://www.hhs.gov/">HHS</a> | <a class="text-white" href="https://www.usa.gov/">USA.gov</a></p>
|
||
</div>
|
||
</div>
|
||
</div>
|
||
|
||
</footer>
|
||
<script src="//assets.nlm.nih.gov/uswds/js/uswds.min.js"></script>
|
||
<script src="//assets.nlm.nih.gov/jquery/jquery-latest.min.js"></script>
|
||
<script src="//assets.nlm.nih.gov/jquery/jquery-migrate-latest.min.js"></script>
|
||
<script src="/scripts/nlm_autocomplete.js"></script>
|
||
<script src="/scripts/nlm_uswds.js"></script>
|
||
|
||
|
||
|
||
|
||
|
||
</body>
|
||
</html>
|
||
|