Structured Abstracts in MEDLINE: Newly Identified and Mapped Labels Available

The National Library of Medicine (NLM) has updated its list of structured abstract labels. This updated list, along with the NLM-assigned broader category mappings, can be downloaded for free from the Structured Abstracts resource page which also provides NLM guidelines and other background information to assist licensees or researchers.

The Updated Label List and NLM Category Mappings file contains 2,799 labels: 2,454 labels (from the 2013 Label List) and 345 new labels. Each label has a map to one of five corresponding broader NLM Categories (i.e., BACKGROUND, OBJECTIVE, METHODS, RESULTS, or CONCLUSIONS) and an indication of whether the label is classed as an "Ending Label" concept. The 345 new label entries have a timestamp of "|20141113". This file does not contain labels that map to UNASSIGNED as an NLM Category (see explanation).

A grand total of 4,514 citations in PubMed (whether in process, MEDLINE, or PubMed-not-MEDLINE status) were revised to reflect the new labels effective on or about November 13, 2014.

Read more about Structured Abstracts in MEDLINE/PubMed.