Fig. 1From: Postoperative analgesia of scalp nerve block with ropivacaine in pediatric craniotomy patients: a protocol for a prospective, randomized, placebo-controlled, double-blinded trialConsolidated standards of reporting trials (CONSORT) flow diagram. Group B: preoperative ropivacaine block group; group A: postoperative nerve block group; group N: nonblocking control groupBack to article page