NLM Announcements

MEDLINE Data Entry by Fiscal Year

11/30/2016 04:55 PM EST

Beginning in 1997, the National Library of Medicine (NLM) has managed a dramatic shift in how citation data first enter the MEDLINE process: from double keyboarding citations by hand; to scanning and using optical character recognition (OCR); to importing records supplied by publishers in eXtensible Markup Language (XML) format.

Key MEDLINE Indicators

11/30/2016 04:55 PM EST

Updated for inclusion of FY2016 Statistics

Citations Added to MEDLINE by Fiscal Year

11/30/2016 04:55 PM EST

The graph and chart below reflect the number of indexed1 citations added to MEDLINE during each fiscal year since 1995.

Detailed Indexing Statistics: 1965-2016

11/30/2016 04:55 PM EST

MEDLINE consists of completed citations indexed with MeSH (Medical Subject Headings).