1. Department of Mental Health Johns Hopkins Bloomberg School of Public Health Baltimore Maryland USA
2. Wendy Klag Center for Autism and Developmental Disabilities Johns Hopkins Bloomberg School of Public Health Baltimore Maryland USA
3. Department of Epidemiology University of Michigan Ann Arbor Michigan USA
4. College of Health and Human Development Pennsylvania State University State College Pennsylvania USA
5. Division of Research Kaiser Permanente Oakland California USA
6. Department of Public Health Sciences and The MIND Institute School of Medicine, University of California‐Davis Davis California USA
7. Department of Epidemiology Johns Hopkins Bloomberg School of Public Health Baltimore Maryland USA
8. A.J. Drexel Autism Institute Drexel University Philadelphia Pennsylvania USA
9. Rollins School of Public Health Emory University Atlanta Georgia USA