2009AA Gold Standard Alchemy Source Information

Counts

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Notes

Sample data are taken from MRREL.RRF. Associated strings(str) from MRCONSO.RRF are also included

• See relationships definitions below.
• Every relationship has a separate row in MRREL.RRF.
• Relationships are assigned based on source documentation or NLM understanding of the source.
• Metathesaurus relationships in MRREL.RRF are read from right to left.
• All relationships in MRREL.RRF are expressed in both directions, for example: 'has_ingredient/ingredient_of'. Inverse relationships in each pair are indicated on this page.
• An asterisk (*) in the relationship attribute column indicates that no relationship attribute (RELA) was assigned.
• Every even row (indicated by orange colored rel/rela pairs) indicates that the current row is an inverse relationship of the row above it.
• See section 2.7.1.3.9 in UMLS Documentation Section 2, Metathesaurus for more information on Related Concepts, MRREL.RRF.

Relationship Definitions

• AQ: allowed qualifier
• CHD: has child (narrower hierarchical term)
• DEL: deleted concept
• PAR: has parent (broader hierarchical term)
• QB: can be qualifier by
• RB: has a broader relationship
• RL: has similar or like relationship
• RN: has narrower relationship
• RO: has relationship other than synonymous, narrower or broader
• RQ: related and possibly synonymous
• SIB: has sibling
• SY: source-asserted synonymy

Sample Data