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<p class="tableOfContents"><strong>Table of Contents: <a href="/pubs/techbull/so18/so18_issue_cover.html">2018 SEPTEMBER&#8211;OCTOBER No. 424</a></strong></p>
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<h1 class="articleH1">MEDLINE/PubMed Year-End Processing Activities for 2019</h1>
<p class="tbyearmonth">MEDLINE/PubMed Year-End Processing Activities for 2019. NLM Tech Bull. 2018 Sep-Oct;(424):e2.</p>
<div class="articleactions">2018 September 12 <span class="status">[posted]</span>
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<!--&#8226; <a href="https://www.nlm.nih.gov/pubs/techbull/nd18/nd18_mesh.html">What's New for 2019 MeSH</a><br /><br />
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&#8226; <a href="/pubs/techbull/so18/so18_2019_mesh_browser.html">2019 MeSH Headings Available in the MeSH Browser</a><br /><br />
<img src="/pubs/techbull/mj07/graphics/blutri.gif" alt="dot" height="10" width="10"/>MEDLINE/PubMed Year-End Processing Activities for 2019<br /><br />
&#8226; <a href="https://www.nlm.nih.gov/pubs/techbull/nd18/nd18_medline_data_changes_2019.html">MEDLINE Data Changes&mdash;2019</a><br /><br />
&#8226; <a href="https://www.nlm.nih.gov/pubs/techbull/nd18/nd18_cataloging_new_2019.html">Cataloging and Metadata News&mdash;2019</a><br /><br />
&#8226; <a href="https://www.nlm.nih.gov/pubs/techbull/nd18/brief/nd18_webinar_2019_mesh_highlights.html">MeSH Webinars: 2019 Highlights and PubMed Searching in January 2019</a> <br /> <br />
&#8226; <a href="https://www.nlm.nih.gov/pubs/techbull/nd18/brief/nd18_new_system.html">Newly Maintained MEDLINE for 2019 MeSH Now Available in PubMed</a><br /> <br />
&#8226; <a href="https://www.nlm.nih.gov/pubs/techbull/nd18/nd18_whats_new_mesh_2019.html">What's New for 2019 MeSH</a>
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<p>
The National Library of Medicine (NLM) is currently involved in MEDLINE year-end processing (YEP) activities. These include changing the Medical Subject Headings (MeSH) main headings and subheadings as well as Supplementary Concept Records that standardize names and associated numbers for chemicals, protocols, diseases and organisms that are not main headings. The MeSH edits include maintaining existing MEDLINE citations to conform with the 2019 version of MeSH, and other global changes. </p>
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<strong>Important Dates</strong></p>
<ul>
<li>November 28, 2018: NLM expects to temporarily suspend the addition of fully-indexed MEDLINE citations to PubMed. NLM will continue to add Publisher-supplied and in process citations.<br /></li>
<li>Mid-December 2018: PubMed MEDLINE citations, translation tables, and the MeSH database will have been updated to reflect 2019 MeSH. <br /></li>
</ul>
<p>For details about the impact on searching from November 28 to mid-December, see: <a href="https://web.archive.org/web/20181023001639/https://www.nlm.nih.gov/bsd/policy/yep_activities.html">Annual MEDLINE/PubMed Year-End Processing (YEP): Impact on Searching During Fall 2018</a>. </p>
<p>
For background information on the general kinds of changes made annually, see: <a href="http://www.nlm.nih.gov/bsd/policy/yep_background.html">Annual MEDLINE/PubMed Year-End Processing (YEP): Background Information</a>. </p>
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