@misc{indiciaee1117fdd3137,
  title = {Technique for evaluating left ventricular performance with apical two-dimensional echocardiography: Progress report.},
  author = {Sidney K. Edelman and Leonard W. Pechacek and Dennis W. Rowe and Efrain Garcia and Robert J. Hall},
  year = {1981},
  url = {https://pubmed.ncbi.nlm.nih.gov/15216224/},
  note = {Source identifier: 15216224}
}