@misc{indiciae73c2f1507952,
  title = {Echocardiogram in mitral regurgitation.},
  author = {I C Schulman},
  year = {1980},
  doi = {10.1016/0002-9149(80)91101-7},
  url = {https://pubmed.ncbi.nlm.nih.gov/7355749/},
  note = {Source identifier: 7355749}
}