MEDLINE Data Entry by Fiscal Year

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.
Source: NLM General Announcements - Category: Databases & Libraries Source Type: news