TY  - RPRT
TI  - Extracting medical knowledge for a coded problem list vocabulary from the UMLS Knowledge Sources.
AU  - J W Hales
AU  - K M Schoeffler
AU  - D P Kessler
PY  - 1998
UR  - https://pubmed.ncbi.nlm.nih.gov/9929225/
ID  - 9929225
ER  -