1. Department of Clinical Science; University of Bergen; Bergen Norway
2. KG Jebsen Center for Diabetes Research, Department of Clinical Science; University of Bergen; Bergen Norway
3. Hormone Laboratory; Haukeland University Hospital; Bergen Norway
4. Else Kroener-Fresenius-Centre for Nutritional Medicine, Chair of Nutritional Medicine; Technische Universität München; Freising-Weihenstephan Germany
5. ZIEL, Research Centre for Nutrition and Food Sciences; Technische Universität München; Freising-Weihenstephan Germany
6. IFB Obesity Diseases; Junior Research Group Animal Models, University of Leipzig; Leipzig Germany
7. Department of Surgery; Voss Hospital; Voss Norway
8. Klinikk Bergen; Teres Medical Group Norge; Nesttun Norway
9. Else Kroener-Fresenius-Centre for Nutritional Medicine; Klinikum rechts der Isar, Technische Universität München; Munich Germany
10. Department of Medicine; University of Leipzig; Leipzig Germany