1. Department of Psychiatry and Psychotherapy, University Hospital of Erlangen, Erlangen, Germany, Department of Psychiatry, Social Psychiatry and Psychotherapy, Medical School Hannover, Hannover, Germany
2. Department of Psychiatry and Psychotherapy, University Hospital of Erlangen, Erlangen, Germany
3. Department of Psychosomatic Medicine and Psychotherapy, University Hospital of Erlangen, Erlangen, Germany
4. Department of Psychiatry, Social Psychiatry and Psychotherapy, Medical School Hannover, Hannover, Germany