2 Aswan Faculty of Medicine, Aswan, Egypt. Electronic address: Islamgalal76@yahoo.com.
3 Department of Tropical Medicine and Gastroenterology, Faculty of Medicine, Assiut University, Assiut 71515, Egypt. Electronic address: naked.mak@aun.edu.eg.
4 Chest Department, Assiut University Hospitals, Assiut 71515, Egypt; Faculty of Medicine, Assiut University, Assiut 71515, Egypt. Electronic address: hamakhlouf@yahoo.com.
5 Internal Medicine and Surgery (adults), Faculty of Nursing, Assiut University, Egypt. Electronic address: drhouida_81@yahoo.com.
6 Public Health and Community Medicine Department, Assiut Faculty of Medicine, Egypt. Electronic address: karema55@yahoo.com.
7 Undergraduate House Officer, Assiut Faculty of Medicine, Assiut University, Assiut, Egypt. Electronic address: Mahmoud.20134331@med.au.edu.eg.
8 Undergraduate House Officer, Faculty of Medicine, Assiut University, Egypt. Electronic address: dinaattay95@gmail.com.
9 Tropical Medicine and Gastroenterology, Faculty of Medicine, Assiut University, Egypt. Electronic address: doaaabdeltawab@gmail.com.