@misc{indiciaefbade9c8e549,
  title = {Preoperative pulmonary function testing to predict postoperative morbidity and mortality.},
  author = {G D Gass and G N Olsen},
  year = {1986},
  doi = {10.1378/chest.89.1.127},
  url = {https://pubmed.ncbi.nlm.nih.gov/3940774/},
  note = {Source identifier: 3940774}
}