TY  - RPRT
TI  - Exercise and COPD.
AU  - Margaret K Covey
AU  - Janet L Larson
PY  - 2004
DO  - 10.1097/00000446-200405000-00018
UR  - https://pubmed.ncbi.nlm.nih.gov/15166714/
ID  - 15166714
ER  -