1. Institute of Pharmacy, Department of Pharmacology, Eberhard Karls University of Tübingen, Tübingen, Germany
2. Institute of Pharmaceutical and Medicinal Chemistry, Department of Pharmacology, University of Münster, Münster, Germany
3. Institute for Diabetes Research and Metabolic Diseases, Helmholtz Center Munich, Eberhard Karls University of Tübingen, Tübingen, Germany