1. Department of Psychiatry and Psychotherapy, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
2. Institute of Clinical Pharmacology and Toxicology, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
3. Department of Psychiatry and Psychotherapy, University of Bonn, Bonn, Germany
4. Department of Neurology, University Zurich, Zurich, Switzerland
5. Department of Internal Medicine and Metabolic Unit, VU University Hospital Amsterdam, Amsterdam, The Netherlands
6. Department of Psychiatry, Division of Old Age Psychiatry, University Hospital of Lausanne, Lausanne, Switzerland