1. Practice guidelines for management of the difficult airway; an updated report by the American Society of Anaesthesiologists Task Force on management of the difficult airway;Anaesthesiol,2003
2. NAP 4. Major complications of airway management in the United Kingdom;Cook;Br J Anaesth,2011
3. Obstructive sleep apnoea;Martinez;Contin Educ Anaesth Crit Care Pain,2011
4. Predicting the difficult airway;Crawley;BJA Educ,2015
5. Diagnostic imaging of the upper airway;Kuo;Proc Am Thorac Soc,2001