Hale KIRIMLIOĞLU et al. 2019. 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. Turkish Journal of Gastroenterology. 20, 1 (Jul. 2019), 41–47.