@misc{indiciaeed6189be7af3,
  title = {Preoperative spirometry: let's do it!},
  author = {G N Olsen},
  year = {1984},
  doi = {10.1016/s0003-4975(10)64205-1},
  url = {https://pubmed.ncbi.nlm.nih.gov/6497486/},
  note = {Source identifier: 6497486}
}