Department of Gastroenterology;
Dubrava University Hospital Zagreb;
University of Zagreb;
Faculty of Pharmacy and Biochemistry;
10040 Zagreb;
Croatia;
Department of Pathology and Cytology;
Dubrava University Hospital Zagreb;
10040 Zagreb;
Croatia;
Division of molecular diagnostics and genetics;
Dubrava University Hospital Zagreb;
University of Zagreb;
School of Medicine;
10040 Zagreb;
Croatia;