TY  - RPRT
TI  - Chronic obstructive pulmonary disease and polycythemia.
AU  - R D Reynolds
AU  - J D Reeves
AU  - J G Frank
AU  - J H Bower
AU  - C Walters
PY  - 1979
DO  - 10.1001/jama.242.20.2180
UR  - https://pubmed.ncbi.nlm.nih.gov/490804/
ID  - 490804
ER  -