NLM Technical Bulletin, Sep-Oct 2020, ISO TA Element Removed from NLM Files

Prior to 2007, separate title abbreviations were assigned for GENBANK and PubMed. GENBANK carried International Organization for Standardization (ISO) title abbreviations (TAs) and PubMed had National Library of Medicine (NLM) TAs. Beginning March 1, 2007, the ISO and NLM TAs have been identical, but both were still carried in PubMed and NLM Catalog citations (see NLM Accepts ISSN Centre Title Abbreviation Assignments for more information).
Source: NLM Technical Bulletin - Category: Databases & Libraries Source Type: news