1. Folkhälsan Institute of Genetics, Folkhälsan Research Center, Biomedicum Helsinki, Helsinki, Finland
2. Division of Nephrology, Department of Medicine, Helsinki University Central Hospital, Helsinki, Finland
3. Obesity Research Unit, Division of Internal Medicine, Department of Medicine and Department of Psychiatry, Helsinki University Central Hospital, Helsinki, Finland
4. Department of Internal Medicine, Tampere University Hospital, and University of Tampere Medical School, Tampere, Finland
5. Institute of Dentistry, University of Helsinki, Helsinki, Finland
6. Department of Public Health, Hjelt Institute, and Centre of Excellence in Complex Disease Genetics, Institute for Molecular Genetics, University of Helsinki, Helsinki, Finland
7. National Institute for Health and Welfare, Helsinki, Finland
8. Baker International Diabetes Institute, Heart and Diabetes Institute, Melbourne, Victoria, Australia