1. DEFACTUM, Public Health & Health Services Research, Central Denmark Region, Olof Palmes Allé 15, 8200 Aarhus N, Denmark
2. Department of Public Health, Section of General Practice, Aarhus University, Aarhus, Denmark
3. Danish Diabetes Academy, Odense, Denmark
4. Medical Research Council Epidemiology Unit, University of Cambridge School of Clinical Medicine, Cambridge, UK
5. Steno Diabetes Center, SCHP, Niels Steensens Vej 6, Gentofte, Denmark
6. Department of Public Health, Aarhus University, Bartholins Allé 2, 8000 Aarhus C, Denmark