TY  - RPRT
TI  - Left ventricular function in chronic obstructive lung disease.
AU  - G L Baum
AU  - A Schwartz
AU  - R Llamas
AU  - C Castillo
PY  - 1971
DO  - 10.1056/nejm197108122850701
UR  - https://pubmed.ncbi.nlm.nih.gov/4326623/
ID  - 4326623
ER  -