Digital cholangioscopy can detect residual biliary stones missed by occlusion cholangiogram in ERCP: a prospective tandem study oleh Divyesh V. Sejpal, Arvind J. Trindade, Calvin Lee, Larry S. Miller, Petros C. Benias, Sumant Inamdar, Gurshawn Singh, Molly Stewart, Benley J. George, Anil K. Vegesna