1. Department of Surgery, Maimonides Medical Center, Brooklyn, New York, USA
2. IDEAL Collaboration, Nuffield Department of Surgical Science, Oxford, UK
3. Interventional Procedures and Medical Technologies Advisory Committees, National Institute for Health and Care Excellence, London, UK
4. Vattikuti Urology Institute, Henry Ford Hospital, Detroit, Michigan, USA
5. Department of Plastic Surgery, Guy's and St Thomas' NHS Foundation Trust, London, UK
6. Department of Surgery, Division of Hepatobiliary and Transplant Surgery, McGill University Health Centre, Royal Victoria Hospital. Montreal, Quebec, Canada