@misc{indiciaea2b1593bae60,
  title = {Transapical left ventricular bypass.},
  author = {W J Kolff and J C Norman},
  year = {1971},
  doi = {10.1378/chest.60.1.110},
  url = {https://pubmed.ncbi.nlm.nih.gov/5571267/},
  note = {Source identifier: 5571267}
}