1. Department of Psychology and Logopedics, and
2. Folkhälsan Research Centre, Helsinki, Finland;
3. Department of General Practice, University of Helsinki, Helsinki, Finland;
4. Unit of Primary Health Care, Helsinki University Central Hospital, Helsinki, Finland;
5. Unit of Primary Health Care, Kuopio University Hospital, Kuopio, Finland;
6. Children’s Hospital, Helsinki University Hospital and University of Helsinki, Helsinki, Finland;
7. Department of Neonatology, University Hospital Bonn, Bonn, Germany;
8. Department of Psychology, University of Warwick, Coventry, United Kingdom;
9. Department of Laboratory Medicine, Children’s and Women’s Health,
10. Department of Public Health and General Practice, and
11. National Institute for Health and Welfare, Helsinki, Finland;
12. National Institute for Health and Welfare, Oulu, Finland;
13. PEDEGO Research Unit, Medical Research Center Oulu, Oulu University Hospital and University of Oulu, Oulu, Finland;
14. University/British Heart Foundation Centre for Cardiovascular Science, Queen’s Medical Research Institute, University of Edinburgh, Edinburgh, United Kingdom;
15. Department of Psychiatry and Behavioral Neurosciences,
16. Department of Pediatrics, and
17. Department of Psychology, Neuroscience & Behavior, McMaster University, Hamilton, Ontario, Canada;
18. Regional Centre for Child and Youth Mental Health and Child Welfare, Norwegian University of Science and Technology, Trondheim, Norway;
19. Department of Child and Adolescent Psychiatry, St. Olav’s Hospital, Trondheim University Hospital, Norway; and
20. Warwick Medical School, University of Warwick, Coventry, United Kingdom