@misc{indiciae30e34c825b48,
  title = {Artificial cardiac valves. Current status and future developments.},
  author = {B C Paton},
  year = {1974},
  doi = {10.1159/000395218},
  url = {https://pubmed.ncbi.nlm.nih.gov/4606245/},
  note = {Source identifier: 4606245}
}