1. Department of Psychiatry , Social Psychiatry and Psychotherapy, , Carl- Neuberg Str. 1, 30625 Hannover , Germany
2. Hannover Medical School , Social Psychiatry and Psychotherapy, , Carl- Neuberg Str. 1, 30625 Hannover , Germany
3. Institute of Legal Medicine, Hannover Medical School , Carl-Neuberg Str. 1, 30625 Hannover , Germany
4. Department of Anesthesiology and Intensive Care Medicine, Pain Clinic, KRH Hannover Nordstadt , Haltenhoffstraße 41, 30167 Hannover , Germany