1Department of Twin Research and Genetic Epidemiology, King’s College London, London, UK
2North West London Hospitals NHS Trust, Northwick Park Hospital, Harrow, UK
3#N# #N# Department of Twin Research and Genetic Epidemiology, King's College London, London, UK,
4Department of Medical ƒ Molecular Genetics, King's College London, Guy's Hospital, London, UK
5Wellcome Trust Sanger Institute, Hinxton, UK
6Stanford Univ USA
7Wellcome Trust Centre for Human Genetics, University of Oxford, Oxford, UK
8Department of Twin Research & Genetic Epidemiology, King’s College London, London, UK
9Department of Genetic Medicine and Development, University of Geneva Medical School, Geneva, Switzerland
10St. John’s Institute of Dermatology, King’s College London, Guy’s Hospital, London, UK
11Oxford Centre for Diabetes, Endocrinology ƒ Metabolism, University of Oxford, Oxford, UK