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ASCII MeSH Qualifier Data Elements

Qualifier records in ASCII MeSH contain the data elements listed below. The list includes all the qualifier data in ELHILL file. Note that not every record will have every data element. Sample record.

AN ANNOTATION
DA DATE OF ENTRY
DQ DATE QUALIFIER ESTABLISHED
HN HISTORY NOTE
MR MAJOR REVISION DATE
MS MESH SCOPE NOTE
OL ONLINE NOTE
QA TOPICAL QUALIFIER ABBREVIATION
QE QUALIFIER ENTRY VERSION
QS QUALIFIER SORT VERSION
QT QUALIFIER TYPE
QX QUALIFIER CROSS REFERENCE
RECTYPE RECORD TYPE [= RY in ELHILL MESH]
SH SUBHEADING
TN TREE NODE ALLOWED
UI UNIQUE IDENTIFIER

Last Reviewed: July 10, 2025