title: Commentary: contributions of epidemiology to the study of birth defects in humans.
authors.affiliation: Division of Birth Defects and Developmental Disabilities, National Center for Environmental Health, Centers for Disease Control and Prevention, Atlanta, Georgia 30333, USA.
authors.forename: M J
authors.initials: MJ
authors.lastname: Khoury
mesh_terms: D000013:Congenital Abnormalities / Q000453:epidemiology* / Q000517:prevention & control; D004812:Epidemiologic Methods; D004813:Epidemiology / Q000706:statistics & numerical data*; D005492:Folic Acid / Q000009:adverse effects; D006801:Humans; D016239:MEDLINE; D009436:Neural Tube Defects / Q000139:chemically induced; D011159:Population Surveillance; D012042:Registries; D018600:Teratology
chemical_list: D005492:Folic Acid