1. Anesthesia and Intensive Care; National Liver Institute; Menoufia University; ShebeenAlkoom Menoufia Egypt
2. Hepatobiliary Surgery; National Liver Institute; Menoufia University; ShebeenAlkoom Menoufia Egypt
3. Pathology; National Liver Institute; Menoufia University; ShebeenAlkoom Menoufia Egypt
4. Clinical Biochemistry; National Liver Institute; Menoufia University; ShebeenAlkoom Menoufia Egypt