@misc{indiciae5f36cdf24f1f,
  title = {Central flow tilting disc valve for aortic valve replacement.},
  author = {V O Björk},
  year = {1970},
  doi = {10.1136/thx.25.4.439},
  url = {https://pubmed.ncbi.nlm.nih.gov/5485003/},
  note = {Source identifier: 5485003}
}