@misc{indiciaec3551f11b18b,
  title = {Mechanical cardiac valvular prostheses.},
  author = {C W Akins},
  year = {1991},
  doi = {10.1016/0003-4975(91)91453-3},
  url = {https://pubmed.ncbi.nlm.nih.gov/2069453/},
  note = {Source identifier: 2069453}
}