1. Department of General and Visceral Surgery; University Hospital Münster; Münster Germany
2. King Faisal Specialist Hospital and Research Centre; Riyadh Saudi Arabia
3. Institute of Liver Studies; King's College London; London UK
4. Department of Clinical Biochemistry; Oxford University Hospitals National Health Service Trust; Oxford UK
5. Institute of Biomedical Engineering; University of Oxford; Oxford UK
6. Nuffield Department of Surgical Sciences; University of Oxford; Oxford UK