title: Periconceptional multivitamin supplementation and nonneural midline defects.
authors.forename: A
authors.initials: A
authors.lastname: Czeizel
mesh_terms: D000013:Congenital Abnormalities / Q000517:prevention & control*; D005260:Female; D005492:Folic Acid / Q000008:administration & dosage; D006801:Humans; D007231:Infant, Newborn; D016742:Preconception Care; D011247:Pregnancy; D011256:Pregnancy Outcome; D011295:Prenatal Care; D014131:Trace Elements / Q000008:administration & dosage; D014815:Vitamins / Q000008:administration & dosage*
chemical_list: D014131:Trace Elements; D014815:Vitamins; D005492:Folic Acid