1. Department of Endocrinology, Diabetes and Metabolism; Department 7652, Rigshospitalet; Copenhagen Denmark
2. Steno Diabetes Center Copenhagen; Gentofte Denmark
3. Faculty of Health and Medical Sciences, University of Copenhagen; Novo Nordisk Foundation Center for Basic Metabolic Research; Copenhagen Denmark
4. Faculty of Health and Medical Sciences; University of Copenhagen; Copenhagen N Denmark
5. Department of Endocrinology; Hvidovre Hospital, University of Copenhagen; Hvidovre Denmark
6. Cochrane Metabolic and Endocrine Disorders Group; Institute of General Practice, Medical Faculty of the Heinrich-Heine-University Düsseldorf; Düsseldorf Germany