Prevention of folate deficiency in pregnancy by food fortification.
D003906:Developing Countries; D004035:Diet Therapy; D004912:Erythrocytes / Q000378:metabolism; D005260:Female; D005492:Folic Acid / Q000032:analysis / Q000097:blood; D005494:Folic Acid Deficiency / Q000517:prevention & control*; D005527:Food, Fortified; D006400:Hematocrit; D006801:Humans; D007743:Labor, Obstetric; D011247:Pregnancy; D011248:Pregnancy Complications; D012044:Regression Analysis; D013997:Time Factors; D003313:Zea mays / Q000032:analysis
D005492:Folic Acid