title: Introduction to symposium on epidemiology in teratology.
mesh_terms: D000013:Congenital Abnormalities / Q000453:epidemiology*; D004812:Epidemiologic Methods; D005260:Female; D006801:Humans; D011247:Pregnancy; D012306:Risk; D013723:Teratogens
chemical_list: D013723:Teratogens