1 Iuliu Hațieganu University of Medicine and Pharmacy; Prof. Dr. O.Fodor Regional Institute of Gastroenterology and Hepatology, Cluj-Napoca, Romania.
2 Iuliu Hațieganu University of Medicine and Pharmacy; Prof. Dr. O.Fodor Regional Institute of Gastroenterology and Hepatology, Cluj-Napoca, Romania.na_hajjar@yahoo.com.
3 Iuliu Hațieganu University of Medicine and Pharmacy;Prof. Dr. O.Fodor Regional Institute of Gastroenterology and Hepatology, Cluj-Napoca, Romania.