1. Vitos Clinic for Psychiatry and Psychotherapy Giessen, Germany
2. Department of Psychiatry and Psychotherapy, Philipps-University of Marburg, Germany
3. Psychiatric Services of the Canton of St.Gallen, Wil, Switzerland
4. Cliena Schloessli, Private Hospital for Psychiatry and Psychotherapy, Oetwil am See, Switzerland
5. Department of General Psychiatry, Psychotherapy and Psychosomatics II, Psychiatric Center Nordbaden, Wiesloch, Germany
6. Department of Psychiatry, Psychotherapy and Psychosomatics, Hospital of Stade, Germany
7. Physiological Psychology, University of Bamberg, Germany