@misc{indiciaec2ce066553f1,
  title = {Extra-auricular mitral valvotomy.},
  author = {H BADEN and F THERKELSEN},
  year = {1954},
  doi = {10.1136/thx.9.4.340},
  url = {https://pubmed.ncbi.nlm.nih.gov/13226315/},
  note = {Source identifier: 13226315}
}