TY  - RPRT
TI  - Physical functioning: definitions, measurement, and expectations.
AU  - P Painter
AU  - A L Stewart
AU  - S Carey
PY  - 1999
DO  - 10.1016/s1073-4449(99)70028-2
UR  - https://pubmed.ncbi.nlm.nih.gov/10230878/
ID  - 10230878
ER  -