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Required Data Elements in MedlineCitationSet

MEDLINE®/PubMed® records in all MedlineCitation statuses distributed to licensees (except as noted below) contain the following data elements:

MedlineCitation (with its Owner and Status attributes)
PMID (with its Version attribute)
DateCreated (includes Year, Month, Day)
DateCompleted (not on In-Data-Review and In-Process status records; includes Year, Month, Day on MEDLINE, OLDMEDLINE, and PubMed-not-MEDLINE status records)
Article (with its PubModel attribute)
     ISSN (with its IssnType attribute; may not reside on a small number of older records)
     PubDate (includes at least Year)
     Title
     ArticleTitle
     MedlinePgn (see Pagination) or ELocationID (with its EIdType and ValidYN attributes)
     Language
     PublicationType (see PublicationTypeList)
Country
MedlineTA
NlmUniqueID
CitationSubset (not on PubMed-not-MEDLINE status records)