Eyal Avivi1, Dana Zelnik Yovel2, Haim Shirin1. 1. The Gonczarowski Family Institute of Gastroenterology and Liver Diseases, Shamir (Assaf Harofeh) Medical Center, Zerifin, affiliated with the Sackler School of Medicine, Tel Aviv University, Tel Aviv, Israel. 2. Department of Internal Medicine "C", Shamir (Assaf Harofeh) Medical Center, Zerifin, Israel. danazelnik@gmail.com.