OLDMEDLINE Content Continues to Extend Back in Time

Beginning 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.