Koyama J, Aoyama T, Kusano Y, Seguchi T, Kawagishi K, Iwashita T, et al. Description and first clinical application of airway scope for tracheal intubation. J Neurosurg Anesthesiol 2006; 18: 247-50.
American Society of Anesthesologists. Practice guideline for management of the difficult airway. Anesthesiology 2003; 98: 1269-77.
Johnson DM, Form AM, Smith RB, From RP, Maktabi MA. Endoscopic study of mechanisms of failure of endotracheal tube advancement into the trachea during awake fiberoptic orotracheal intubation. Anesthesiology 2005; 102: 910-4.
Maktabi MA, Hoffman H, Funk G, From RP. Laryngeal trauma during awake fiberoptic intubation. Anesth Analg 2002; 95: 1112-4.
Randell T, Hakala R Kytta J, Kinnunen J. The relevance of clinical and radiological measurements in predicting difficulties in fibreoptic orotracheal intubation in adults. Anaesthesia 1998; 53: 1144-7.