1. Department of Environmental Health and Engineering, Johns Hopkins Bloomberg School of Public Health, Baltimore, Maryland 21218, United States
2. Department of Public Health Sciences, University of California Davis, Davis, California 95616, United States
3. Department of Biostatistics and Epidemiology, Rutgers School of Public Health, Piscataway, New Jersey 08854, United States
4. Department of Population and Public Health Sciences, University of Southern California, Los Angeles, California 90032, United States
5. Department of Pediatrics and Department of Environmental Medicine, New York University School of Medicine, New York, New York 10016, United States
6. Department of Gynecology and Obstetrics, Emory University School of Medicine, Atlanta, Georgia 30322, United States
7. Department of Environmental Health Sciences, Columbia, New York, NY 10032, United States
8. Department of Epidemiology, Dartmouth Geisel School of Medicine, Lebanon, New Hampshire 03756, United States
9. Department of Environmental Health, Rollins School of Public Health, Emory University, Atlanta, Georgia 30322, United States
10. Department of Environmental Health Sciences, University of Michigan School of Public Health, Ann Arbor, Michigan 48109, United States
11. Department of Environmental Science, Policy and Management and School of Public Health, University of California, Berkeley California 94720, United States
12. Department of Psychiatry, University of Rochester, Rochester, New York 14627, United States
13. Beckman Institute for Advanced Science and Technology, University of Illinois Urbana-Champaign, Urbana, Illinois 61801, United States
14. RTI International, Research Triangle Park, North Carolina 27709, United States
15. Department of Obstetrics, Gynecology, and Reproductive Sciences and the Philip R. Lee Institute for Health Policy Studies, University of California San Francisco, San Francisco, California 94143, United States