OLDMEDLINE Content Continues to Extend Back in Time
b eginning on December 28, 2007, citations from the 1949 Current List of Medical Literature (CLML) were added to the OLDMEDLINE subset in PubMed®. These 55,557 citations have not yet been mapped to current MeSH®. To search PubMed for citations originating from OLDMEDLINE use jsubsetom. For additional information about the OLDMEDLINE data project, see: http://www.nlm.nih.gov/databases/databases_oldmedline.html.
OLDMEDLINE Content Continues to Extend Back in Time. NLM Tech Bull. 2008 Jan-Feb; (360):e1.