@misc{indiciaed53574d17207,
  title = {Ejection fraction revisited.},
  author = {J L Robotham and M Takata and M Berman and Y Harasawa},
  year = {1991},
  doi = {10.1097/00000542-199101000-00026},
  url = {https://pubmed.ncbi.nlm.nih.gov/1986643/},
  note = {Source identifier: 1986643}
}