1. Centers for Disease Control and PreventionNational Center on Birth Defects and Developmental Disabilities Atlanta Georgia
2. Carter Consulting, Incorporated Atlanta Georgia
3. Oak Ridge Institute for Science and Education Oak Ridge Tennessee
4. Massachusetts Department of Public HealthCenter for Birth Defects Research and Prevention Boston Massachusetts
5. College of Public HealthUniversity of South Florida Tampa Florida
6. Department of Epidemiology, College of Public HealthUniversity of Iowa Iowa City Iowa
7. Birth Defects Epidemiology and Surveillance BranchTexas Department of State Health Services Austin Texas
8. Division of Public HealthNorth Carolina Department of Health and Human Services Raleigh North Carolina
9. Department of Epidemiology, Fay W. Boozman College of Public HealthUniversity of Arkansas for Medical Sciences, Arkansas Center for Birth Defects Research and Prevention Little Rock Arkansas
10. Illinois Department of Public Health Springfield Illinois
11. Department of Family and Community MedicineBaylor College of Medicine Houston Texas
12. Utah Birth Defect Network, Division of Family Health and PreparednessUtah Department of Health Salt Lake City Utah
13. Ohio Department of Health Columbus Ohio
14. Arizona Birth Defects Monitoring Program, Arizona Department of Health Services Phoenix Arizona
15. Arkansas Reproductive Health Monitoring SystemArkansas Children's Research Institute Little Rock Arkansas
16. Special Child Health and Early Intervention Services, New Jersey Department of Health Trenton New Jersey
17. Department of Pediatrics, Section of Hematology‐OncologyBaylor College of Medicine Houston Texas