1. Psychiatry Department; Helsinki University Central Hospital (HUCH); Out-Patient Clinic for Mood Disorders; Finland
2. Centre for Psychological Services Research; Department of Psychology; University of Sheffield; UK
3. Harris Manchester College; University of Oxford; UK
4. Department of Psychology; Miami University; Oxford Ohio USA
5. Department of Psychology; Appalachian State University; Boone North Carolina USA
6. School of Educational Sciences and Psychology; University of Eastern Finland; Joensuu Finland