@misc{indiciae8c13c5bda39f,
  title = {Functional evaluation after aortic valve replacement.},
  author = {K Niemelä and M Ikäheimo and J Takkunen},
  year = {1983},
  doi = {10.3109/14017438309099356},
  url = {https://pubmed.ncbi.nlm.nih.gov/6648397/},
  note = {Source identifier: 6648397}
}