The expression of matrix metalloproteinases in intrahepatic cholangiocarcinoma, hilar (Klatskin tumor), middle and distal extrahepatic cholangiocarcinoma, gallbladder cancer, and ampullary carcinoma: Role of matrix metalloproteinases in tumor progression - , Hale KIRIMLIOĞLU, İlknur TÜRKMEN and , Nuray BAŞSÜLLÜ and , Abuzer DİRİCAN and , Neşe KARADAĞ and , Vedat KIRIMLIOĞLU (Turkish Journal of Gastroenterology 1, 2019)