@misc{indiciae4e3e9c43ba18,
  title = {Which prosthetic valve?},
  author = {G Rees},
  year = {1976},
  doi = {10.1016/s0140-6736(76)92806-3},
  url = {https://pubmed.ncbi.nlm.nih.gov/73663/},
  note = {Source identifier: 73663}
}