1. Practice guidelines for the management of the difficult airway: an updated report by the American society of anaesthesiologists task force on management of the difficult airway;Apfelbaum;Anaesthesiology,2013
2. Canadian Airway Focus Group updated consensus-based recommendations for the management of the difficult airway: part 2. Planning and implementing safe management of the patient with an anticipated difficult airway;Law;Can. J. Anaesth.,2021
3. Difficult Airway Society 2015 guidelines for the management of unanticipated difficult intubation in adults;Frerk;Br. J. Anaesth.,2015
4. Fibreoptic uses and omissions;Popat,2011
5. An international survey of airway management education in 61 countries;Armstrong;Br. J. Anaesth.,2020