TY  - RPRT
TI  - Long-term exercise therapy for chronic obstructive lung disease.
AU  - D J Mertens
AU  - R J Shephard
AU  - T Kavanagh
PY  - 1978
DO  - 10.1159/000193865
UR  - https://pubmed.ncbi.nlm.nih.gov/414316/
ID  - 414316
ER  -