1. Department of Surgery, Faculty of Medicine King Abdulaziz University Jeddah Kingdom of Saudi Arabia
2. Faculty of Medicine King Abdulaziz University Jeddah Kingdom of Saudi Arabia
3. Radiology Department, Radiation Oncology Unit, Faculty of Medicine King Abdulaziz University Jeddah Kingdom of Saudi Arabia
4. Department of Medicine University of Jeddah Jeddah Kingdom of Saudi Arabia
5. Clinical Research Education Program Icahn School of Medicine at Mount Sinai New York New York USA