1. Department of Child Psychiatry and Invest Flagship, University of Turku , Finland
2. Finnish Institute for Health and Welfare , Finland
3. Helsinki University Hospital, Department of Adolescent Psychiatry , Finland
4. Turku University Central Hospital, Department of Child Psychiatry , Finland
5. Karolinska Institute, Department of Molecular Medicine and Surgery, Sweden and Region Stockholm, Academic Primary Health Care Centre , Stockholm , Sweden
6. School of Medicine, University College Dublin , Ireland