1. Division of Congenital and Developmental Disorders, National Center on Birth Defects and Developmental DisabilitiesCenters for Disease Control and Prevention Atlanta Georgia
2. Birth Defects Epidemiology and Surveillance BranchTexas Department of State Health Services Austin Texas
3. North Carolina Birth Defects Monitoring ProgramState Center for Health Statistics Raleigh North Carolina
4. Department of Maternal and Child Health, University of North Carolina at Chapel Hill Chapel Hill North Carolina
5. University of Mississippi Medical Center Jackson Mississippi
6. Baylor College of Medicine Houston Texas
7. Birth Defects Monitoring & Analysis UnitMinnesota Department of Health St. Paul Minnesota
8. California Birth Defects Monitoring ProgramCalifornia Department of Public Health Richmond California
9. Department of Community and Family Health, College of Public HealthUniversity of South Florida Tampa Florida