@misc{indiciae90e1476dff67,
  title = {The exercise phonocardiogram in mitral stenosis.},
  author = {D D Decker and M J Gerbrandt and M I Dunn},
  year = {1966},
  doi = {10.1016/0002-8703(66)90218-3},
  url = {https://pubmed.ncbi.nlm.nih.gov/4951485/},
  note = {Source identifier: 4951485}
}