Sergio Assia-Zamora is a pediatrician and pediatric surgeon. Currently, he is Senior Clinical Fellow in Pediatric Liver Transplant at King’s College Hospital. He is a member of the following: the European Board of Transplant Surgeons; the European Board of Pediatric Surgeons; American Society of Transplant Surgeons; British Association of Pediatric Surgeons; Royal College of Surgeons Liver Transplant; Royal College of Surgeons; International Liver Transplant Society; British Transplant Society; Pediatric Surgical Council; Pediatric Council; and the Mexican Society of Transplantation. Nigel Heaton is Head of Liver Transplantation at King’s College Hospital NHSFT, and previously the Clinical Academic Co-Lead for Liver, Renal, Urology, GI Medicine and Surgery and Transplantation within King’s Health Partners, the Academic Health Centre serving South London. He is an adult and pediatric liver transplant and HPB surgeon, and has been responsible for the liver transplant programme at King’s College Hospital for the past 20+ years.