@misc{indiciaed368fc30f1a7,
  title = {Mitral valvuloplasty: a learning curve.},
  author = {M J Antunes and P R Colsen and R H Kinsley},
  year = {1983},
  url = {https://pubmed.ncbi.nlm.nih.gov/6872198/},
  note = {Source identifier: 6872198}
}