@misc{indiciae613459ae1cf3,
  title = {Letter: Which prostitute valve?},
  author = {L I Bonchek},
  year = {1976},
  doi = {10.1016/s0140-6736(76)91885-7},
  url = {https://pubmed.ncbi.nlm.nih.gov/57411/},
  note = {Source identifier: 57411}
}