Have you ever entered an author’s last name, journal name and maybe a volume number or a couple of keywords into that PubMed general search box to retrieve a citation you already knew about only to get 0 hits? You may have even found your citation previously in a PubMed subject search so you know it’s GOT to be in there! Well, that kind of search failed because the old PubMed tried mapping your terms to the MeSH (Medical Subject Heading) thesaurus or it searched the Title, Abstract or Keywords of a record according to its Automatic Term Mapping (ATM) rules. Finding citations was best done using the “Single Citation Matcher” in the left sidebar. Now, however, everything has changed.