1. School of Medicine, University of Manchester , Manchester M13 9PL , United Kingdom
2. Faculty of Medicine in Hradec Kralove, Charles University , CZ-121 08 Prague 2 , Czech Republic
3. School of Medicine, University of Liverpool , Liverpool L69 3GE , United Kingdom
4. School of Medicine, University of Glasgow , Glasgow G12 8QQ , United Kingdom
5. Department of Transplantation, Addenbrooke's Hospital, Cambridge University Hospitals NHS Foundation Trust , Cambridge CB2 0QQ , United Kingdom
6. Department of Surgery, University of Cambridge , Cambridge CB2 0QQ , United Kingdom
7. Department of Medicine, Downstate Health Science University , Brooklyn, NY, 11203 , United States of America
8. Manchester Diabetes, Endocrine and Metabolism Centre, Manchester Royal Infirmary, Manchester University Hospitals NHS Foundation Trust , Manchester M13 9WL , United Kingdom
9. Faculty of Biology Medicine and Health, University of Manchester , Manchester M13 9PL , United Kingdom
10. Manchester Centre for Transplantation, Manchester Royal Infirmary , Manchester University NHS Foundation Trust M13 9WL, Manchester , United Kingdom