4Maharaj C H,O'Croinin D,Curley G,et al.A comparison of tracheal intubation using theAirtraq or the Macintosh laryngoscope in routine airway management:A randomised,controlled clinical trial[J].Anaesthesia,2006,61(11):1093-1099.
5Maruyama K,Yamada T,Kawakami R,et al.Upper cervical spine movement duringintubation:fluoroscopic comparison of the Airway Scope,McCoy laryngoscope,and Macintosh laryngoscope[J].Br J Anaesth,2008,100(1):120-124.