Comparison of endoscopic papillary large balloon dilation with and without a prior endoscopic sphincterotomy for the treatment of patients with large and/or multiple common bile duct stones: a systematic review and meta-analysis

• Pan LiuThe First People's Hospital of Neijiang
• Huapeng LinZhejiang University
• Yuanyuan ChenThe Affiliated Yongchuan Hospital of Chongqing Medical University
• Yushen WuThe Affiliated Yongchuan Hospital of Chongqing Medical University
• Maocai TangChongqing University
• Liang LaiThe First People's Hospital of Neijiang