1. Department of Obstetrics and Gynecology; University of Rochester School of Medicine and Dentistry; Rochester NY
2. Department of Epidemiology; Johns Hopkins University Bloomberg School of Public Health; Baltimore MD
3. Departments of Pediatrics and Environmental and Occupational Health Sciences; University of Washington; Seattle WA
4. Seattle Children's Research Institute; Seattle WA
5. Department of Medicine; University of Minnesota; MN
6. Department of Epidemiology and Community Health; University of Minnesota; Minneapolis MN
7. Department of Preventive Medicine; Icahn School of Medicine at Mount Sinai; New York NY