Fig. 2From: Improving mucosal anesthesia for awake endotracheal intubation with a novel method: a prospective, assessor-blinded, randomized controlled trialResults of mean arterial pressure (MAP) of the six perioperative time points. Error bars are +/− standard error of the mean. There were significant differences between groups at the time points of T2, T3, T4, T5 (P < 0.05)Back to article page