1. Department of Epidemiology, Emory University School of Public Health, Atlanta, Georgia, USA
2. Department of Medicine, University of Maryland School of Medicine, Baltimore, Maryland, USA
3. Department of Psychology and
4. Department of Psychiatry, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina, USA
5. Center for Autism Spectrum Disorders, Children’s National Medical Center, Washington, DC, USA
6. Department of Pediatrics
7. Department of Psychiatry and
8. Department of Neurology, George Washington University School of Medicine, Washington, DC, USA
9. Center for Development and Learning, Kennedy Krieger Institute, Baltimore, MD, USA
10. Department of Pediatrics, Johns Hopkins University School of Medicine, Baltimore, Maryland, USA
11. Eunice Kennedy Shriver National Institute of Child Health and Human Development, National Institutes of Health, Department of Health and Human Services, Bethesda, Maryland, USA
12. LaKind Associates, LLC, Catonsville, Maryland, USA
13. Department of Epidemiology and Preventive Medicine, University of Maryland School of Medicine, Baltimore, Maryland, USA
14. Department of Pediatrics, Milton S. Hershey Medical Center, Penn State College of Medicine, Hershey, Pennsylvania, USA