1. Centers for Disease Control and Prevention (CDC). Hospital stays, hospital charges, and in-hospital deaths among infants with selected birth defects—United States, 2003. MMWR Morb Mortal Wkly Rep 2007; 56: 25–29.
2. Lee K, Khoshnood B, Chen L, Wall SN, Cromie WJ, Mittendorf RL . Infant mortality from congenital malformations in the United States, 1970–1997. Obstet Gynecol 2001; 98: 620–627.
3. Petrini J, Damus K, Russell R, Poschman K, Davidoff MJ, Mattison D . Contribution of birth defects to infant mortality in the United States. Teratology 2002; 66 (Suppl 1): S3–S6.
4. (CDC) CfDCaP. Birth defects, 2010 [cited 1 October 2010]. Available from: http://www.cdc.gov/ncbddd/bd/ .
5. Brent RL . Environmental causes of human congenital malformations: the pediatrician's role in dealing with these complex clinical problems caused by a multiplicity of environmental and genetic factors. Pediatrics 2004; 113: 957–968.