PERFORATION OF THE COMMON BILE DUCT DURING SPYGLASS CHOLANGIOSCOPY IN A PATIENT WITH IGG4-RELATED SCLEROSING CHOLANGITIS (IGG4-SC) - Paraskeva, K; Papastergiou, V; Giannakopoulos, A; Petraki, S; Triantopoulou, C (Endoscopy, 2020)