@misc{indiciae27cb33caf1ab,
  title = {Echocardiogram in mitral stenosis.},
  author = {J H Horgan},
  year = {1978},
  doi = {10.1016/0002-9149(78)90035-8},
  url = {https://pubmed.ncbi.nlm.nih.gov/626143/},
  note = {Source identifier: 626143}
}