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