TY  - RPRT
TI  - Therapeutic algorithm for chronic obstructive pulmonary disease.
AU  - K R Chapman
PY  - 1991
DO  - 10.1016/0002-9343(91)90257-x
UR  - https://pubmed.ncbi.nlm.nih.gov/1951400/
ID  - 1951400
ER  -