1. Institute of Biomedical & Clinical Science, University of Exeter Medical School, Exeter, U.K.
2. MacLeod Diabetes and Endocrine Centre, Royal Devon and Exeter National Health Service Foundation Trust, Exeter, U.K.
3. National Institute for Health Research Exeter Clinical Research Facility, Royal Devon and Exeter National Health Service Foundation Trust, and University of Exeter Medical School, Exeter, U.K.
4. Oxford Centre for Diabetes Endocrinology and Metabolism, University of Oxford, Oxford, U.K.
5. National Institute for Health Research Oxford Biomedical Research Centre, The Churchill Hospital, Oxford, U.K.
6. Department of Molecular Genetics, Royal Devon and Exeter National Health Service Foundation Trust, and University of Exeter Medical School, Exeter, U.K.