BOZ, Alper, Osman EVLİYAOĞLU, Mehmet YILDIRIM, Nazif ERKAN, and Baysal KARACA. “The Value of Serum Zinc, Copper, Ceruloplasmin Levels in Patients With Gastrointestinal Tract Cancers”. Turkish Journal of Gastroenterology 16, no. 2 (January 2, 2005): 81–84. Accessed January 1, 2026. https://www.turkjgastroenterol.org/index.php/tjg/article/view/1415.