1. 1Department of Metabolism, Digestion and Reproduction, Imperial College London, London, United Kingdom.
2. 2Department of Radiation Oncology, Chang Gung Memorial Hospital and Chang Gung University, Taoyuan, Taiwan.
3. 3Harrogate District Hospital, Harrogate, United Kingdom.
4. 4National Liver Unit, Menoufiya University, Shbeen El Kom, Egypt.
5. 5Health Futures Institute, Murdoch University, Perth WA, Australia.
6. 6Department of Surgery and Cancer, Imperial College London, London, United Kingdom.