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2009 SEPTEMBER–OCTOBER No. 370
September 03, 2009 [posted]

MEDLINE®/PubMed® Year-End Processing Activities

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T he National Library of Medicine® (NLM®) is currently involved in MEDLINE year-end processing (YEP) activities. These include changing the Medical Subject Headings (MeSH®) and Supplementary Concept Substance Names on existing MEDLINE citations to conform with the 2010 version of MeSH, and other global changes.

Important Dates



For details about the impact on searching from November 18 to mid-December, see: Annual MEDLINE®/PubMed® Year-End Processing (YEP): Impact on Searching During Fall 2009.

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

MEDLINE®/PubMed® Year-End Processing Activities. NLM Tech Bull. 2009 Sep-Oct;(370):e3.

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