title: Enzyme defect as a risk factor for spina bifida.
mesh_terms: D005260:Female; D005492:Folic Acid / Q000097:blood; D006801:Humans; D042965:Methylenetetrahydrofolate Reductase (NADPH2); D009154:Mutation; D000587:Oxidoreductases Acting on CH-NH Group Donors / Q000235:genetics*; D011247:Pregnancy; D012307:Risk Factors; D016135:Spinal Dysraphism / Q000201:enzymology* / Q000209:etiology
chemical_list: D005492:Folic Acid; D000587:Oxidoreductases Acting on CH-NH Group Donors; D042965:Methylenetetrahydrofolate Reductase (NADPH2)