1. Tropical Medicine and Gastroenterology Department; Faculty of Medicine; South Valley University; Qena Egypt
2. Clinical and Chemical Pathology Department; Faculty of Medicine; South Valley University; Qena Egypt
3. Clinical Pathology Department; Faculty of Medicine; Assiut University; Assiut Egypt
4. Internal Medicine Department; Division of Gastroenterology; Faculty of Medicine; Assiut University; Assiut Egypt
5. Department of Medical Biochemistry and Molecular Biology; Faculty of Medicine; South Valley University; Qena Egypt