@misc{indiciae2185ee8a2293,
  title = {A simple method to assess postoperative risk.},
  author = {G T Kinasewitz and M H Welch},
  year = {2001},
  doi = {10.1378/chest.120.4.1057},
  url = {https://pubmed.ncbi.nlm.nih.gov/11591537/},
  note = {Source identifier: 11591537}
}