@misc{indiciae7c7e5f5d1ad8,
  title = {Indications for preoperative pulmonary function testing.},
  author = {J D Zibrak and C R O'Donnell},
  year = {1993},
  url = {https://pubmed.ncbi.nlm.nih.gov/8519169/},
  note = {Source identifier: 8519169}
}