Professor Abdeldayem graduated from Kasr Elaini School of Medicine in 1987. He received training at Cairo University Hospitals, Menoufia University, University of Pittsburgh Medical Center and King Abdul-Aziz Medical City. He Joined the National Liver Institute in 1993. He has several publications in the fields of hepato-pancreato-biliary surgery and organ transplantation. He is a Member of InTechOpen\'s Editorial Advisory Board, and is Associate editor in another publication. He currently holds the positions of Professor of Surgery and Dean of the National Liver Institute, Menoufia University, Egypt.