Efficacy and safety of endoscopic ultrasonography (EUS) hepaticogastrostomy (HGS) versus choledochoduodenostomy (CDS) in ERCP-failed malignant biliary obstruction: A systematic review and META-analysis

内镜超声引导下肝胃吻合术（EUS-HGS）与胆总管十二指肠吻合术（CDS）治疗ERCP失败的恶性胆道梗阻的疗效和安全性：系统评价和META分析