@misc{indiciae7d9fb7d400f6,
  title = {Exercise testing in patients with valve replacement.},
  author = {F Kraus and W Rudolph},
  year = {1981},
  doi = {10.1159/000173323},
  url = {https://pubmed.ncbi.nlm.nih.gov/7317910/},
  note = {Source identifier: 7317910}
}