@misc{indiciaebc66f8d238f6,
  title = {Mitral valve prolapse. Evolution and refinement of diagnostic techniques.},
  author = {J K Perloff and J S Child},
  year = {1989},
  doi = {10.1161/01.cir.80.3.710},
  url = {https://pubmed.ncbi.nlm.nih.gov/2670319/},
  note = {Source identifier: 2670319}
}