Fig. 2From: Dexmedetomidine for prevention of postoperative pulmonary complications in patients after oral and maxillofacial surgery with fibular free flap reconstruction:a prospective, double-blind, randomized, placebo-controlled trialThe Kaplan-Meier curve representing the time to occurrence of PPCs in the postoperative 7 days between the DEX group and the placebo groupBack to article page