1. Department of Medical Informatics and Biostatistics, “Iuliu Hațieganu” University of Medicine and Pharmacy, Louis Pasteur Street, No. 6, 400349 Cluj-Napoca, Romania
2. Octavian Fodor Regional Institute of Gastroenterology and Hepatology Cluj-Napoca, Croitorilor Street, No. 19–21, 400162 Cluj-Napoca, Romania
3. 3rd Department of Surgery, “Iuliu Hațieganu” University of Medicine and Pharmacy, Croitorilor Street, No. 19–21, 400162 Cluj-Napoca, Romania
4. Ion Chiricuță Oncology Institute, Republicii Street, No. 34–36, 400015 Cluj-Napoca, Romania