@misc{indiciae97c6fd284ef5,
  title = {Valvular heart disease.},
  author = {B A Carabello and F A Crawford},
  year = {1997},
  doi = {10.1056/nejm199707033370107},
  url = {https://pubmed.ncbi.nlm.nih.gov/9203430/},
  note = {Source identifier: 9203430}
}