@misc{indiciaef3f11847e28a,
  title = {Cardiac valve replacement.},
  author = {J P Richardson},
  year = {1979},
  doi = {10.5694/j.1326-5377.1979.tb104229.x},
  url = {https://pubmed.ncbi.nlm.nih.gov/318478/},
  note = {Source identifier: 318478}
}