@misc{indiciae6381bf1fb51f,
  title = {Mitral valve prolapse in the elderly.},
  author = {D D Tresch and R Sigel and M H Keelan and C M Gross and H L Brooks},
  year = {1979},
  doi = {10.1111/j.1532-5415.1979.tb01681.x},
  url = {https://pubmed.ncbi.nlm.nih.gov/469155/},
  note = {Source identifier: 469155}
}