Affiliation: | 1. Department of Internal Medicine, Faculty of Medicine, Cairo University, , Cairo, Egypt;2. Department of Medical Biochemistry and Molecular Biology, Faculty of Medicine, Cairo University, , Cairo, Egypt;3. Department of Clinical Pathology, Faculty of Medicine, Cairo University, , Cairo, Egypt;4. Department of Chemical Pathology, Faculty of Medicine, Cairo University, , Cairo, Egypt;5. Department of General Surgery, Faculty of Medicine, Al‐Azhar University, , Cairo, Egypt |