Fig. 4From: Improving mucosal anesthesia for awake endotracheal intubation with a novel method: a prospective, assessor-blinded, randomized controlled trialIntubation time between groups. Each vertical bar represents the mean ± standard error (n = 30 in each group). The total time of intubation was significantly shorter in the N-AIC group (*P < 0.05)Back to article page