@misc{indiciae3bc378f45f5a,
  title = {Mitral disc-valve variance.},
  author = {R B Berroya and F B Escano},
  year = {1972},
  doi = {10.1136/thx.27.1.87},
  url = {https://pubmed.ncbi.nlm.nih.gov/5017573/},
  note = {Source identifier: 5017573}
}