1. Department of Neurology, University of Erlangen-Nuremberg, Erlangen, Germany
2. Department of Psychiatry, Social Psychiatry and Psychotherapy, Hannover Medical School, Hannover, Germany
3. Department of Psychiatry, Psychotherapy and Psychosomatics of the University Augsburg, Augsburg, Germany
4. Department of Psychiatry and Psychotherapy, Ludwig Maximilian University of Munich, Munich, Germany
5. Department of Psychiatry and Psychotherapy, Georg-August University of Goettingen, Goettingen, Germany
6. Department of Gastroenterology and Gastrointestinal Oncology, Liver Center Goettingen, University Medical Center Goettingen, Georg-August University of Goettingen, Göttingen, Germany
7. Department of Forensic Psychiatry, Kbo-IAK, Academic Teaching Hospital of the Ludwig-Maximilian University, Munich, Germany