@misc{indiciae52ac2b45a927,
  title = {Doppler method of assessing ventricular ejection force.},
  author = {W G Guntheroth},
  year = {1990},
  doi = {10.1016/0002-9149(90)91025-2},
  url = {https://pubmed.ncbi.nlm.nih.gov/2327353/},
  note = {Source identifier: 2327353}
}