@misc{indiciaec1c9033fbc54,
  title = {Effect of chronic exercise on myocardial function.},
  author = {J Crews and E E Aldinger},
  year = {1967},
  doi = {10.1016/0002-8703(67)90013-0},
  url = {https://pubmed.ncbi.nlm.nih.gov/4227758/},
  note = {Source identifier: 4227758}
}