@misc{indiciae8fd82ff84fda,
  title = {Pulmonary function tests in preoperative pulmonary evaluation.},
  author = {C A Powell and C E Caplan},
  year = {2001},
  doi = {10.1016/s0272-5231(05)70061-7},
  url = {https://pubmed.ncbi.nlm.nih.gov/11787660/},
  note = {Source identifier: 11787660}
}