title: Use of 6,000 IU vitamin A during early pregnancy without teratogenic effect.
authors.forename: I
authors.initials: I
authors.lastname: Dudas
authors.forename: A E
authors.initials: AE
authors.lastname: Czeizel
mesh_terms: D000013:Congenital Abnormalities / Q000453:epidemiology; D005260:Female; D005865:Gestational Age; D006801:Humans; D006814:Hungary / Q000453:epidemiology; D011247:Pregnancy; D013723:Teratogens; D014801:Vitamin A / Q000008:administration & dosage / Q000009:adverse effects*
chemical_list: D013723:Teratogens; D014801:Vitamin A