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Cataloging and Metadata Management: Using Medical Subject Headings (MeSH®) in Cataloging

Module 4—Descriptors: Selecting the Main Concept(s)


Order of Headings

  • Primary subject headings appear first in the record, followed by secondary subjects in order of importance, or in order of their appearance in the item, if importance cannot be determined

  • At NLM, in distribution of bibliographic records, or as a result of year end processing, headings may appear in alphabetical order, but the primary subjects will always precede the secondary subjects

Format of MeSH Headings

  • Generally, the first letter of all words in a descriptor is upper-cased, with the exception of some species names (follow capitalization shown in MeSH Browser)

  • All words in a qualifier are lower-cased


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