Effect of improving sleep quality the night before surgery with zolpidem on postoperative gastrointestinal function in patients undergoing laparoscopic partial colorectal resection: a randomized, double-blind, controlled trial - Gao, Ruijia; Huang, Yu; Mao, Shimeng; He, Hongyan; Yao, Jinliang; Feng, Jiying; Wang, Ying (BMC Anesthesiology, 2025)