@misc{indiciaea98c6215fd6b,
  title = {Closed operation for mitral stenosis.},
  author = {J G Scannell},
  year = {1981},
  doi = {10.1016/s0003-4975(10)60953-8},
  url = {https://pubmed.ncbi.nlm.nih.gov/7212830/},
  note = {Source identifier: 7212830}
}