TY  - RPRT
TI  - Chronic obstructive pulmonary disease.
AU  - J M Madison
AU  - R S Irwin
PY  - 1998
DO  - 10.1016/s0140-6736(97)11081-9
UR  - https://pubmed.ncbi.nlm.nih.gov/9708769/
ID  - 9708769
ER  -