The place of brush cytology in the differential diagnosis of extrahepatic cholestasis - DUMLU, Şükrü; DÖKMECİ, A. Kadir and ÖRMECİ, Necati and BEYLER, A. Reşit and EKİNCİ, Cemil and; ALİMOĞLU, Özden (Turkish Journal of Gastroenterology, 1996)