@misc{indiciae5c9c7454e287,
  title = {Quadrivalvular heart disease.},
  author = {A S Kumar and K S Iyer and P Chopra},
  year = {1985},
  doi = {10.1016/0167-5273(85)90177-9},
  url = {https://pubmed.ncbi.nlm.nih.gov/4055138/},
  note = {Source identifier: 4055138}
}