title: Maternal use of nutritional supplements during the first month of pregnancy and decreased risk of Down's syndrome.
authors.forename: Theodore F
authors.initials: TF
authors.lastname: Thurmon
mesh_terms: D016022:Case-Control Studies; D019587:Dietary Supplements; D004314:Down Syndrome / Q000453:epidemiology* / Q000235:genetics* / Q000517:prevention & control; D005260:Female; D005492:Folic Acid / Q000008:administration & dosage*; D006801:Humans; D007231:Infant, Newborn; D039382:Maternal Nutritional Physiological Phenomena; D009630:Nondisjunction, Genetic; D011110:Polymorphism, Genetic; D011247:Pregnancy; D011261:Pregnancy Trimester, First
chemical_list: D005492:Folic Acid