@misc{indiciaece4d2dff28a4,
  title = {Failed mitral valvotomy.},
  author = {J K ROSS},
  year = {1959},
  doi = {10.1136/thx.14.4.320},
  url = {https://pubmed.ncbi.nlm.nih.gov/14439164/},
  note = {Source identifier: 14439164}
}