Assistant Professor Dr. Riyadh Mohammad Hasan is a medical doctor, consultant surgeon and Chief of the Department of Surgery throughout many hospitals in Baghdad-Iraq. He has practiced most fields in general surgery with main interest in gastrointestinal surgery. He currently works as assistant Professor in general surgery with main interests in gastrointestinal surgery in Al-Kindy College of Medicine. He has published many articles in peer-reviewed journals with a focus on colorectal surgery. He is a member of many medical societies and is a supervisor in medical board training.Professor Dr. Batool Mutar Mahdi is a medical doctor, Consultant in Clinical Immunology and Head of the HLA Research Unit at Al-Kindy College of Medicine. She currently works as a Professor of Clinical Immunology at the same University and holds a Master's degree in Clinical Immunology and a board degree in Pathology-Clinical Immunology from the Iraqi Board of Clinical Specialization where she has identified the HLA typing of the Iraqi population. She has published over 70 articles in peer-reviewed journals with a focus on the aetiopathogenesis of Inflammatory Bowel Disease. Prof Dr Batool is an international member of the American Society of Histocompatibility and Immunogenetics.