1. Section for Evidence Based Medicine in Psychiatry and Psychotherapy, Department of Psychiatry and Psychotherapy, School of Medicine; Technical University of Munich; Munich Germany
2. Department of Clinical and Experimental Medicine, Psychiatry Unit; University of Catania; Catania Italy
3. Department of Psychiatry, Faculty of Medicine; University of Thessaly; Larisa Greece
4. BASTA - Bündnis für psychisch erkrankte Menschen; Munich Germany
5. Biomedical and Biotechnological Sciences; University of Catania; Catania Italy
6. Department of Psychiatry, Psychotherapy and Psychosomatics, Medical Faculty; University of Augsburg; Augsburg Germany