@misc{indiciaea57fde53d4e0,
  title = {Mitral incompetence.},
  author = {W BRIGDEN and A LEATHAM},
  year = {1953},
  doi = {10.1136/hrt.15.1.55},
  url = {https://pubmed.ncbi.nlm.nih.gov/13018977/},
  note = {Source identifier: 13018977}
}