@misc{indiciae5ec96bbcb80c,
  title = {Postoperative pulmonary complications.},
  author = {H J Forthman and A Shepard},
  year = {1969},
  doi = {10.1097/00007611-196910000-00010},
  url = {https://pubmed.ncbi.nlm.nih.gov/4899147/},
  note = {Source identifier: 4899147}
}