1. Department for General Psychiatry and Psychotherapy at Wunstorf Clinic, Hannover Region Clinics, Germany
2. Department of Psychiatry, Social Psychiatry and Psychotherapy, Hannover Medical School, Hannover, Germany
3. Department of Psychology, Humboldt-Universität zu Berlin, Berlin, Germany
4. Department for Addiction Medicine and Psychotherapy, Karl-Jaspers-Klinik, Bad Zwischenahn, Germany
5. Life - Institute for Mental Health, Rosdorf, Germany
6. NTFN e.V, Hannover, Germany
7. Department of Psychiatry and Neurosciences, Charité-Universitätsmedizin Berlin, Berlin, Germany