1. Institute for Diabetes Research and Metabolic Diseases; Helmholtz Center Munich; University of Tübingen; Tübingen Germany
2. German Center for Diabetes Research; Neuherberg Germany
3. Institute of Medical Psychology and Behavioral Neurobiology/fMEG; Eberhard Karls University Tübingen; Tübingen Germany
4. Department of Internal Medicine; Division of Endocrinology, Diabetology, Angiology, Nephrology and Clinical Chemistry; Eberhard Karls University Tübingen; Tübingen Germany