1. Department of Neuroendocrinology, University of Lübeck, Lübeck, Germany;
2. Department of Neuroscience, Functional Pharmacology, Uppsala University, Uppsala, Sweden;
3. Department of Internal Medicine I, University of Lübeck, Lübeck, Germany;
4. Interdisciplinary Obesity Center, Kantonsspital St. Gallen, St. Gallen, Switzerland.