Fig. 1From: Comparison of a tube core and Magill forceps for nasotracheal intubation: a randomised controlled trialTube core, a malleable rigid stylet (A); wire-reinforced tracheal tube (B); aseptic suction catheter (OD - 4.0 mm, C); wire-reinforced tracheal tube (TUORen Medical Equipment Co., Henan, China, D)Back to article page