Lack of association between vitamin intake during early pregnancy and reduction limb defects.
D005260:Female; D006801:Humans; D007231:Infant, Newborn; D017880:Limb Deformities, Congenital; D011247:Pregnancy; D011261:Pregnancy Trimester, First; D011295:Prenatal Care; D014815:Vitamins / Q000008:administration & dosage*
D014815:Vitamins