TY  - RPRT
TI  - Perceived difficulty, importance, and satisfaction with physical function in COPD patients.
AU  - Jeffrey A Katula
AU  - W Jack Rejeski
AU  - Katie L Wickley
AU  - Michael J Berry
PY  - 2004
DO  - 10.1186/1477-7525-2-18
UR  - https://pubmed.ncbi.nlm.nih.gov/15056389/
ID  - 15056389
ER  -