Staining for intracytoplasmic lumina and CAM5.2 increases the detection rate for bile duct cancers - Jahng, A. W.; Chung, D.; Pham, B.; Reicher, S.; Yee, B.; Abramyan, L.; Venegas, R.; French, S.; Eysselein, V. E. (Endoscopy, 2009)