1. The Generation R Study Group; Erasmus University Medical Center; Rotterdam The Netherlands
2. Department of Pediatrics; Erasmus University Medical Center; Rotterdam The Netherlands
3. Department of Immunology; Erasmus University Medical Center; Rotterdam The Netherlands
4. Department of Cariology, Endodontology and Pedodontology; Academic Center for Dentistry Amsterdam (ACTA); Amsterdam The Netherlands
5. Department of Epidemiology; Erasmus University Medical Center; Rotterdam The Netherlands
6. Department of Global Public Health; Leiden University College; The Hague The Netherlands
7. The Dutch Cranofacial Centre; Department of Oral and Maxillofacial Surgery; Sophia's Children's Hospital; Erasmus University Medical Center; Rotterdam The Netherlands
8. Department of Immunology and Pathology; Monash University; Melbourne Vic. Australia