@misc{indiciaee2831acdbce0,
  title = {Assessment of left ventricular function.},
  author = {W C Sheldon},
  year = {1981},
  doi = {10.3949/ccjm.48.1.1},
  url = {https://pubmed.ncbi.nlm.nih.gov/7261356/},
  note = {Source identifier: 7261356}
}