@misc{indiciae27c176fba927,
  title = {Leaflet geometry and function in porcine bioprostheses.},
  author = {M Butterfield and J Fisher and G A Davies and J M Kearney},
  year = {1991},
  doi = {10.1016/1010-7940(91)90079-y},
  url = {https://pubmed.ncbi.nlm.nih.gov/2018645/},
  note = {Source identifier: 2018645}
}