TY  - RPRT
TI  - Effect of a physical conditioning program upon left ventricular ejection fractions determined serially by a noninvasive technique.
AU  - D S Sheps
AU  - S Gottlieb
AU  - J C Ernst
AU  - N Kallos
AU  - F W Briese
AU  - E Garcia
AU  - R J Myerburg
AU  - A Castellanos
PY  - 1979
DO  - 10.1159/000170623
UR  - https://pubmed.ncbi.nlm.nih.gov/476732/
ID  - 476732
ER  -