TY  - RPRT
TI  - Exercise training in chronic bronchitis.
AU  - D J Sinclair
AU  - C G Ingram
PY  - 1980
DO  - 10.1136/bmj.280.6225.1229
UR  - https://pubmed.ncbi.nlm.nih.gov/7388482/
ID  - 7388482
ER  -