1. Division of Reproductive Health, National Center for Chronic Disease Prevention and Health Promotion, Centers for Disease Control and Prevention, Atlanta, Georgia.
2. U.S. Public Health Service Commissioned Corps, Atlanta, Georgia.
3. Division of Congenital and Developmental Disorders, National Center on Birth Defects and Developmental Disabilities, Centers for Disease Control and Prevention, Atlanta, Georgia.
4. Association of Maternal & Child Health Programs, Washington, District of Columbia.
5. National Preconception Health and Health Care Initiative, Center for Maternal and Infant Health, University of North Carolina, Chapel Hill, North Carolina.