1. Joseph J. Zilber School of Public Health, University of Wisconsin-Milwaukee, Milwaukee, Wisconsin, USA
2. Division of Environmental and Occupational Disease Control, California Department of Public Health, Richmond, California, USA
3. Department of Preventive Medicine, Keck School of Medicine, University of Southern California, Los Angeles, California, USA
4. Department of Epidemiology and Biostatistics, Drexel University Dornsife School of Public Health, Philadelphia, Pennsylvania, USA
5. Department of Civil and Environmental Engineering, University of Wisconsin-Madison, Madison, Wisconsin, USA
6. Center for Autism Research, Children’s Hospital of Philadelphia and University of Pennsylvania, Philadelphia, Pennsylvania, USA
7. Department of Mental Health, Johns Hopkins Bloomberg School of Public Health, Baltimore, Maryland, USA