@misc{indiciaea5187ea485e9,
  title = {A patient classification system for the OR.},
  author = {N J Girard and B A Keeler},
  year = {1986},
  doi = {10.1016/s0001-2092(07)60064-7},
  url = {https://pubmed.ncbi.nlm.nih.gov/3638935/},
  note = {Source identifier: 3638935}
}