1. 1Department of Endocrinology, Diabetology and Metabolism, University Hospital Basel, Basel, Switzerland
2. 2Department of Clinical Research, University of Basel, Basel, Switzerland
3. 3Psychiatric University Hospital (UPK), University of Basel, Basel, Switzerland
4. 4Transfaculty Research Platform Molecular and Cognitive Neuroscience, University of Basel, Basel, Switzerland
5. 5Division of Endocrinology and Diabetes, Department of Internal Medicine I, University Hospital, University of Würzburg, Würzburg, Germany
6. 6Central Laboratory, University Hospital Würzburg, Würzburg, Germany
7. 7Neuroendocrine Unit, Massachusetts General Hospital, Harvard Medical School, Boston, Massachusetts, USA
8. 8Division of Endocrinology and Metabolism, Department of Medicine, Georgetown University Medical Center, Washington, District of Columbia, USA
9. 9Department of Internal Medicine I, Division of Endocrinology, Diabetes and Metabolism, University Medical Center Bonn, Bonn, Germany