1. Department of Medicine, Birmingham Heartlands Hospital Birmingham
2. Department of Nephrology, Royal Preston Hospital Preston, Lanes
3. Department of Renal Medicine, Royal Infirmary Stoke-on-Trent
4. Department of Medicine, The Medical School Newcastle-upon-Tyne
5. Nuffield Department of Surgery, Wellcome Trust Centre for Human Genetics Oxford
6. Department of Medicine, Walton Hospital Liverpool
7. Department of Medical Genetics, Queen's University of Belfast Belfast, Northern Ireland, U.K
8. Department of Medicine, Manchester Royal Infirmary Manchester
9. Department of Paediatrics, John Radcliffe Hospital Headington, Oxford, England