1. Spina bifida and anencephaly before and after folic acid mandateUnited States, 1995-1996 and 1999-2000.;MMWR Morb Mortal Wkly Rep,2004
2. Recommendation for the use of folic acid to reduce the number of cases of spina bifida and other neural tube defects.;MMWR Recomm Rep,1992
3. Decline in the prevalence of spina bifida and anencephaly by raceethnicity: 1995-2002.;Williams;Pediatrics,2005
4. Neural tube defect surveillance and folic acid interventionTexas-Mexico border, 1993-1998.;MMWR Morb Mortal Wkly Rep,2000
5. Neural tube defect prevalence in California 1990-1994: eliciting patterns by type of defect and maternal raceethnicity.;Feuchtbaum;Genet Test,1999