1. Medical Biochemistry and Molecular Biology, Faculty of Medicine, Menoufia University, Shebin Elkom, Egypt
2. Clinical Pathology, National Liver Institute, Menoufia University, Shebin Elkom, Egypt
3. Internal Medicine Department, Immunology and Rheumatology Unit, Faculty of Medicine, Menoufia University, Shebin Elkom, Egypt
4. Microbiology and Immunology, Clinical Microbiology and Immunology Department, National Liver Institute, Menoufia University, Shebin Elkom, Egypt