1. Department of Internal Medicine, Psychosomatic Medicine and Psychotherapy, University Hospital Tübingen, Tübingen, Germany
2. Center for Excellence in Eating Disorders Tübingen (KOMET), Tübingen, Germany
3. Charité Center for Internal Medicine and Dermatology, Department of Psychosomatic Medicine, Corporate member of Freie Universität Berlin and Humboldt-Universität zu Berlin, Berlin, Germany