1. The Generation R Study Group, Erasmus University Medical Center, Rotterdam, The Netherlands.
2. Department of Child and Adolescent Psychiatry/Psychology, Erasmus University Medical Center-Sophia Children's Hospital, Rotterdam, The Netherlands.
3. Department of Endocrinology, Erasmus University Medical Center-Sophia Children's Hospital, Rotterdam, The Netherlands.
4. Department of Internal Medicine, Erasmus University Medical Center, Rotterdam, The Netherlands.
5. Department of Clinical Chemistry, Erasmus University Medical Center-Sophia Children's Hospital, Rotterdam, The Netherlands.
6. Department of Epidemiology, Erasmus University Medical Center, Rotterdam, The Netherlands.
7. Department of Pediatrics, Erasmus University Medical Center-Sophia Children's Hospital, Rotterdam, The Netherlands.
8. Department of Immunology, Erasmus University Medical Center, Rotterdam, The Netherlands.
9. Department of Obstetrics and Gynecology, Erasmus University Medical Center-Sophia Children's Hospital, Rotterdam, The Netherlands.
10. Department of Neurology, Methodist Neurological Institute, Houston, Texas.