TY  - RPRT
TI  - Maximum exercise as an outcome in COPD: minimal clinically important difference.
AU  - E Rand Sutherland
AU  - Barry J Make
PY  - 2005
DO  - 10.1081/copd-200051358
UR  - https://pubmed.ncbi.nlm.nih.gov/17136974/
ID  - 17136974
ER  -