@misc{indiciae090a89026d0b,
  title = {Effect of a physical conditioning program upon left ventricular ejection fractions determined serially by a noninvasive technique.},
  author = {D S Sheps and S Gottlieb and J C Ernst and N Kallos and F W Briese and E Garcia and R J Myerburg and A Castellanos},
  year = {1979},
  doi = {10.1159/000170623},
  url = {https://pubmed.ncbi.nlm.nih.gov/476732/},
  note = {Source identifier: 476732}
}