Endoscopy, Table of Contents Endoscopy 1997; 29(8): S 50DOI: 10.1055/s-2007-1004311 Unusual Cases and Technical Notes © Georg Thieme Verlag KG Stuttgart · New York A Novel Method of Obtaining Contrast-Free Bile while Performing Endoscopic Retrograde Cholangiography S. P. Misra, M. Dwivedi Dept. of Gastroenterology, M. L. N., Medical College, Allahabad, India Recommend Article Abstract PDF Download PDF (186 kb)