1. Division of Epidemiology and Community Health, School of Public Health, University of Minnesota, Minneapolis, Minnesota, USA.
2. Department of Epidemiology, Johns Hopkins School of Public Health, Baltimore, Maryland, USA.
3. Department of Emergency Medicine, Massachusetts General Hospital, Harvard Medical School, Boston, Massachusetts, USA.
4. Department of Psychology, Pediatrics, Obstetrics/Gynecology, University of Utah, Salt Lake City, Utah, USA.
5. Department of Environmental Medicine and Public Health, Icahn School of Medicine at Mt. Sinai, New York, New York, USA.
6. Department of Preventative Medicine and Pharmacology, Addictive Science, and Toxicology, University of Tennessee, Memphis, Tennessee, USA.
7. Department of Pediatrics, Avera Research Institute, School of Medicine, University of South Dakota, Sioux Falls, South Dakota, USA.
8. Department of Obstetrics and Gynecology, School of Medicine, Columbia University, New York, New York, USA.
9. Division of Asthma Research, Department of Pediatrics, Cincinnati Children's Hospital, University of Cincinnati, Cincinnati, Ohio, USA.
10. Department of Pediatrics, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina, USA.
11. Department of Psychiatry and Pediatrics, Center for the Study of Children at Risk, Alpert Medical School of Brown University and Women and Infants Hospital of Rhode Island, Providence, Rhode Island, USA.
12. Department of Pediatrics, Oregon Health and Science University, Portland, Oregon, USA.
13. Department of Psychology, Penn State University, University Park, Pennsylvania, USA.
14. Department of Population Medicine, Harvard Medical School and Harvard Pilgrim Health Care Institute, Boston, Massachusetts, USA.
15. Division of Public Health, Department of Obstetrics, Gynecology, and Reproductive Sciences, Michigan State University, Flint, Michigan, USA.
16. Department of Pediatrics, University of Washington, Seattle Children's Research Institute, Seattle, Washington, USA.
17. Department of Epidemiology, Dartmouth Geisel School of Medicine, Hanover, New Hampshire, USA.
18. Department of Pediatrics and Occupational Medicine, Epidemiology and Prevention, Zucker School of Medicine at Hofstra/Northwell, Hempstead, New York, USA.
19. Department of Psychiatry, School of Medicine, University of Pittsburgh, Pittsburgh, Pennsylvania, USA.