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Sep

11

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MEDLINE/PubMed Year-End Processing Activities for 2020 MeSH!

Posted by on September 11th, 2019 Posted in: Announcements, NLM Products, PubMed
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The National Library of Medicine 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 2020 version of MeSH, and other global changes.

Important Dates

  • December 4, 2019: 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.
  • Mid-December 2019: PubMed MEDLINE citations, translation tables, and the MeSH database will have been updated to reflect 2020 MeSH.

For details about the impact on searching from December 4 to mid-December, visit: Annual MEDLINE/PubMed Year-End Processing (YEP): Impact on Searching During Fall 2019.

For background information on the general kinds of changes made annually, visit: Annual MEDLINE/PubMed Year-End Processing (YEP): Background Information.

Image of the author ABOUT Alan Carr
Alan Carr is the Associate Director, National Network of Libraries of Medicine, Pacific Southwest Region, based at UCLA.

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This project is funded by the National Library of Medicine, National Institutes of Health, Department of Health and Human Services, under Cooperative Agreement Number UG4LM012341 with the UCLA Louise M. Darling Biomedical Library.

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