National Hepatology and Tropical Medicine Research Institute, Cairo, Egypt
MOHAMED Alboraie, Cairo, Egypt
Helwan University, Cairo, Egypt
Erasme Hospital, Gastroenterology Department, Université Libre de Bruxelles (ULB), Brussels, Belgium
Faculty of Medicine, Zagazig University, Zagazig, Sharkia, Egypt
Singapore General Hospital, Singapore, Singapore
Ain Shams Universty, Cairo, Nasr City, Egypt
Faculty of Dentistry, Cairo, Egypt
Al Azhar University, Cairo, Egypt