Department of Gastroenterology, Hepatology and Endemic Medicine, Faculty of Medicine, Minia University, Minia, Egypt

Yasser Fouad

National Center for Gastrointestinal and Liver Diseases, Ibn Sina Hospital, Ministry of Health, Khartoum, Sudan

Salma Barakat

Department of Internal Medicine, University of Jeddah, Jeddah, Saudi Arabia

Almoutaz Hashim

Gastroenterology and Hepatology Service, Yerevan Medical Scientific Center, Yerevan, Armenia

Hasmik Ghazinyan

Correspondence to Yasser Fouad.