1. Institute of Cancer and Genomic Science, College of Medical and Dental Science University of Birmingham Birmingham UK
2. Hepatobiliary and Pancreatic Surgery and Liver Transplant Unit University Hospitals Birmingham Birmingham UK
3. Department of General Surgery Royal Glamorgan Hospital, Cwm Taf University Health Board Pontyclun UK
4. Department of General Surgery Sandwell and West Birmingham Hospitals Birmingham UK
5. Faculty of Science Benha University Benha Egypt
6. Institute of Immunology and Immunotherapy, College of Medical and Dental Science University of Birmingham Birmingham UK