1. United States Department of Health, Education, and Welfare. Infant, fetal, and maternal mortality: United States—1963. Washington, DC: The Department; 1966.
2. United States Department of Health and Human Services. Health United States, 2004. Hyattsville, MD: The Department; 2004.
3. Centers for Disease Control and Prevention. Healthier mothers and babies. MMWR 1999;48:849–58.
4. Centers for Disease Control and Prevention. Birth: final data for 2002. National Vital Statistics Reports 2003;52.
5. Correa-Villasenor A, et al. The Metropolitan Atlanta Congenital Defects Program: 35 years of birth defects surveillance at the Centers for Disease Control and Prevention. Birth Defects Res 2003;67:617–24.