Medical Subject Headings
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 |
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