NECHITA, Vlad-Ionuţ, “Iuliu Hațieganu” University of Medicine and Pharmacy, Department of Medical Informatics and Biostatistics, 6 Louis Pasteur Str., 400349 Cluj-Napoca; Third Surgery Clinic, Prof. Dr. “Octavian Fodor” Regional Institute of Gastroenterology - Hepatology, 19-21 Croitorilor Street, 400162 Cluj-, Romania