1. Department of Surgical Sciences, Sleep Science Laboratory Uppsala University Uppsala Sweden
2. Department of Pharmaceutical Biosciences, Molecular Neuropharmacology Uppsala University Uppsala Sweden
3. Department of Radiology Leiden University Medical Center Leiden the Netherlands
4. Department of Experimental Diabetology German Institute of Human Nutrition Potsdam‐Rehbruecke (DIfE) Nuthetal Germany
5. German Center for Diabetes Research (DZD) München‐Neuherberg Munich Germany
6. Research Group Genetics of Obesity German Institute of Human Nutrition Potsdam‐Rehbruecke (DIfE) Nuthetal Germany
7. Research Group Molecular and Clinical Life Science of Metabolic Diseases, Faculty of Health Sciences Brandenburg University of Potsdam Potsdam Germany