@misc{indiciae7c73bacd3b59,
  title = {Defining the difficult airway.},
  author = {R L Knill},
  year = {1993},
  doi = {10.1097/00000542-199308000-00048},
  url = {https://pubmed.ncbi.nlm.nih.gov/8342864/},
  note = {Source identifier: 8342864}
}