Cholecysto-duodenal Fistula Complicated with Gallstone Ileus, Liver Abscess, and Common Bile Duct Stones: A Case Report of an Elderly Patient
H. Feifan
Risk Factors Analysis for Pathological Upgrade After Endoscopic Submucosal Dissection in Patients with Gastric Intraepithelial Neoplasia: A Single Center Retrospective Study