1. Department of Public Health; University of Helsinki; Helsinki Finland
2. Department of Psychiatry; Helsinki University Central Hospital; Helsinki Finland
3. Department of Adolescent Psychiatry; Helsinki University Central Hospital; Helsinki Finland
4. Institute of Clinical Medicine; Child Psychiatry, University of Turku; Turku Finland
5. Department of Psychiatry; University of North Carolina at Chapel Hill; North Carolina
6. Department of Nutrition; University of North Carolina at Chapel Hill; North Carolina
7. Parnassia Psychiatric Institute, The Hague; The Netherlands
8. Department of Psychiatry; Groningen University; Groningen The Netherlands
9. Department of Mental Health and Alcohol Research; National Public Health Institute for Health and Welfare; Helsinki Finland
10. Institute for Molecular Medicine FIMM; Helsinki Helsinki Finland