@misc{indiciae62c1fb2418c5,
  title = {Valve surgery in octogenarians.},
  author = {A C Ralph-Edwards and A G Robinson and R S Gordon and J Ivanov},
  year = {1999},
  url = {https://pubmed.ncbi.nlm.nih.gov/10523478/},
  note = {Source identifier: 10523478}
}