Endoscopic treatment of biliary fistulas: results of 20 patients - HİLMİOĞLU, Fatih; YILDIRIM, Bülent; KARINCAOĞLU, Melih; ALADAĞ, Murat; KANTARÇEKEN, Bülent; DOĞAN, İbrahim (Turkish Journal of Gastroenterology, 1999)