TY  - RPRT
TI  - Validity of problem-oriented record system for evaluating treatment outcome.
AU  - R H Allen
AU  - L J Webb
AU  - R S Gold
PY  - 1980
DO  - 10.2466/pr0.1980.47.1.303
UR  - https://pubmed.ncbi.nlm.nih.gov/6968441/
ID  - 6968441
ER  -