1. Department of Child and Adolescent Psychiatry/Psychology, Erasmus MC, University Medical Center, Rotterdam, the Netherlands.
2. The Generation R Study Group, Erasmus MC, University Medical Center, Rotterdam, the Netherlands.
3. Centre for Community Child Health, Murdoch Childrens Research Institute, The Royal Children's Hospital, Parkville, Australia.
4. Department of Pediatrics, The University of Melbourne, Parkville, Australia.
5. Department of Pediatrics and the Liggins Institute, The University of Auckland, Auckland, New Zealand.
6. Department of Psychology, Education, and Child Studies, Erasmus University Rotterdam, Rotterdam, the Netherlands.