1. General Surgery Department, Kasralainy School of Medicine, Giza
2. Internal Medicine, Kasralainy School of Medicine, Cairo University, Giza
3. National Hepatology and Tropical Medicine Research Institute, Gastroenterology and Hepatology, Cairo, Egypt
4. General/OesophagoGastric Surgery, Salford Royal Hospital, Manchester
5. Division of Cancer Sciences, University of Manchester
6. Great Western Hospital, NHS Foundation Trust
7. Wirral University Teaching Hospitals, NHS, Wirral, UK
8. Royal Free London Hospital, NHS
9. Glangwill General Hospital, Carmarthen, Wales
10. Menoufia Faculty of Medicine
11. General Surgery, United Lincolnshire NHS Trust
12. University Hospitals Dorset NHS Foundation Trust
13. North Cumbria Integrated Care NHS Foundation Trust, Cumberland Infirmary Hospital
14. Laparoscopic and HBP Surgery at National Hepatology and Tropical Medicine Research Institute, Cairo, Egypt