Fig. 1From: RETRACTED ARTICLE: Effect of perioperative infusion of Dexmedetomidine combined with Sufentanil on quality of postoperative analgesia in patients undergoing laparoscopic nephrectomy: a CONSORT-prospective, randomized, controlled trialPatient enrolment flow diagram. This illustrates the flow of all patients screened, excluded, and randomizedBack to article page