1. Department of Internal Medicine, Al-Azhar University, Cairo, Egypt
2. Medical-Surgical Nursing Department, Faculty of Nursing, Cairo University, Cairo, Egypt
3. Medical-Surgical Nursing Department, College of Nursing, Princess Nourah Bint Abdulrahman University, Saudi Arabia
4. Department of Gastroenterology and Hepatology, Police Authority Hospital, Agoza, Giza, Egypt
5. Hepatogastroenterology and Infectious Diseases Department, Al-Azhar University, Damietta, Egypt
6. Tropical Medicine, Faculty of Medicine, Alexandria University, Alexandria, Egypt
7. Internal Medicine, Assiut University, Assiut, Egypt
8. Hepatology and Gastroenterology Department, National Liver Institute, Menoufia University, Menoufia, Egypt
9. Faculty of Medicine, Al-Azhar University, Cairo, Egypt
10. Internal Medicine, Gastroenterology and Hepatology, Kafrelsheikh University, Kafrelsheikh, Egypt
11. Tropical Medicine and Infectious Diseases Department, Tanta University, Tanta, Egypt
12. Hepatogastroenterology and Infectious Diseases Department, Al-Azhar University, Cairo, Egypt