1. Department of Molecular Endocrinology, Institute for Endocrinology and Diabetes, Center of Brain Behavior and Metabolism (CBBM), University of Lübeck, Lübeck, Germany.
2. Leibniz Research Institute for Environmental Medicine (IUF), Düsseldorf, Germany.
3. Department of Endocrinology, University Hospital Essen, University Duisburg-Essen, Essen, Germany.