TY  - RPRT
TI  - Quantitative evaluation of left ventricular function by radiographic techniques.
AU  - C E Rackley
PY  - 1976
DO  - 10.1161/01.cir.54.6.862
UR  - https://pubmed.ncbi.nlm.nih.gov/791535/
ID  - 791535
ER  -