@misc{indiciaec7b6d4d2a3e9,
  title = {Difficult tracheal intubation: a retrospective study.},
  author = {G L Samsoon and J R Young},
  year = {1987},
  doi = {10.1111/j.1365-2044.1987.tb04039.x},
  url = {https://pubmed.ncbi.nlm.nih.gov/3592174/},
  note = {Source identifier: 3592174}
}