@misc{indiciaef6c5f4ec68b5,
  title = {[Special problems in geriatric thoracic surgery].},
  author = {A P Naef and A Kocher},
  year = {1969},
  url = {https://pubmed.ncbi.nlm.nih.gov/5771934/},
  note = {Source identifier: 5771934}
}