Spina bifida.
D015984:Causality; D005492:Folic Acid / Q000627:therapeutic use; D006801:Humans; D016742:Preconception Care / Q000379:methods; D011322:Primary Prevention / Q000379:methods; D016135:Spinal Dysraphism / Q000175:diagnosis / Q000209:etiology / Q000628:therapy; D016216:Ultrasonography, Prenatal
D005492:Folic Acid