title: Letter to the editor interpreting trends in the context of previous evidence.
authors.affiliation: Birth Defects Surveillance Program, Department of Community and Family Health, College of Public Health, University of South Florida, Tampa, Florida.
authors.forename: Russell S
authors.initials: RS
authors.lastname: Kirby
mesh_terms: D002140:California; D005492:Folic Acid; D020139:Gastroschisis; D006801:Humans; D009436:Neural Tube Defects; D015995:Prevalence
chemical_list: D005492:Folic Acid