@misc{indiciae09c710ac82c8,
  title = {Predicting difficult intubation.},
  author = {C M Frerk},
  year = {1991},
  doi = {10.1111/j.1365-2044.1991.tb09909.x},
  url = {https://pubmed.ncbi.nlm.nih.gov/1781521/},
  note = {Source identifier: 1781521}
}