Antrum Preservation Versus Antrum Resection in Laparoscopic Sleeve Gastrectomy: A Systematic Review and Meta-Analysis of Randomized Controlled Trials. - Niu, Chao; Li, Bo; Wan, Hongwei; Jin, Wendi; Zhang, Zhiping; Zhang, Wanfu; Li, Xiaogang (Journal of Investigative Surgery, 2025)