title: Maternal smoking and Down syndrome.
authors.forename: R E
authors.initials: RE
authors.lastname: Christianson
authors.forename: C P
authors.initials: CP
authors.lastname: Torfs
mesh_terms: D000328:Adult; D002675:Child, Preschool; D004314:Down Syndrome / Q000209:etiology*; D005260:Female; D005500:Follow-Up Studies; D006801:Humans; D007223:Infant; D007231:Infant, Newborn; D011247:Pregnancy; D012907:Smoking / Q000009:adverse effects*