Endoscopy, Table of Contents Endoscopy 2018; 50(08): v30DOI: 10.1055/a-0643-0699 Video Comment © Georg Thieme Verlag KG Stuttgart · New York Video Comment on Ying-Chun Ren et al. Recommend Article Abstract See also: Dilation catheter-guided mini-forceps biopsy improves the diagnostic accuracy of malignant biliary stricturesEndoscopy 2018; 50(08): 809-812DOI: 10.1055/a-0630-0878 Full Text