Fig. 1From: Conventional versus video-assisted laryngoscopy for perioperative endotracheal intubation (COVALENT) - a randomized, controlled multicenter trialExamples of different laryngoscopes to be used in each of the three study arms (from left to right): conventional laryngoscope with Macintosh blade, video-assisted laryngoscope with Macintosh-shaped blade, video-assisted laryngoscope with hyper-angulated bladeBack to article page