title: Gastric bypass, pregnancy, and neural tube defects.
authors.forename: L B
authors.initials: LB
authors.lastname: Knudsen
authors.forename: B
authors.initials: B
authors.lastname: Källén
mesh_terms: D000293:Adolescent; D000328:Adult; D005260:Female; D005315:Fetal Diseases / Q000209:etiology*; D006801:Humans; D007581:Jejunoileal Bypass / Q000009:adverse effects*; D008875:Middle Aged; D009436:Neural Tube Defects / Q000209:etiology*; D011247:Pregnancy