@misc{indiciaec745c0344004,
  title = {Aortic valve replacement. Prosthesis related complications.},
  author = {D A Killen and J P Sutton and H A Collins},
  year = {1973},
  url = {https://pubmed.ncbi.nlm.nih.gov/4721782/},
  note = {Source identifier: 4721782}
}