[1] Department of Endemic Medicine, Faculty of Medicine, Helwan University, Cairo
[2] Department of Public Health and Community Medicine, Damietta Faculty of Medicine, Al-Azhar University, Damietta
[3] Faculty of Public Health and Health Informatics, Umm Al-Qura University, Makkah
[4] Department of Gastroenterology, Hepatology and Infectious Diseases, Kafrelsheikh University, Kafrelsheikh
[5] Department of Hepatology and Gastroenterology, Mansoura University, Mansoura
[6] Department of Tropical Medicine and Gastroenterology, Assiut University, Assiut
[7] Integrated Clinical and Research Center for Intestinal Disorders (ICRID), Department and Endemic Medicine, Cairo University, Cairo
[8] Department of Tropical Medicine, Faculty of Medicine, Zagazig University, Zagazig
[9] Department of Tropical Medicine, Faculty of Medicine, Ain Shams University, Cairo
[10] Department of Hepatogastroenterology and Infectious Diseases, Damietta Faculty of Medicine, Al-Azhar University, Damietta
[11] Department of Gastroenterology, National Hepatology and Tropical Medicine Research Institute, Cairo
[12] Department Tropical Medicine and Gastroenterology, Sohag University, Sohag
[13] Department of Hepatology and Gastroenterology, Talkha Central Hospital, Talkha
[14] Department of Tropical Medicine and Gastroenterology, Faculty of Medicine, Aswan University, Aswan
[15] Department of Tropical Medicine, Faculty of Medicine, Alexandria University, Alexandria
[16] Department of Tropical Medicine and Infectious Diseases, Faculty of Medicine, Tanta University, Tanta