title: Birth prevalence and recurrence rates of neural tube defects in southern Alberta in 1970-81.
authors.forename: R B
authors.initials: RB
authors.lastname: Lowry
authors.forename: N Y
authors.initials: NY
authors.lastname: Thunem
mesh_terms: D000416:Alberta; D006801:Humans; D009436:Neural Tube Defects / Q000453:epidemiology*; D009626:Terminology as Topic