title: Gastric bypass surgery as maternal risk factor for neural tube defects.
mesh_terms: D005260:Female; D006801:Humans; D007231:Infant, Newborn; D007581:Jejunoileal Bypass / Q000009:adverse effects*; D009436:Neural Tube Defects / Q000209:etiology*; D012306:Risk; D013997:Time Factors