@misc{indiciaedae006a3af0a,
  title = {Prosthetic heart valves.},
  author = {T Walther and V Falk},
  year = {1997},
  doi = {10.1056/nejm199701163360313},
  url = {https://pubmed.ncbi.nlm.nih.gov/8992353/},
  note = {Source identifier: 8992353}
}