The Risk Of Birth Defects From Folic Acid Antagonists During Pregnant

Background Multivitamin supplementation in pttttttt women may reduce the risks of cardiovascular defects, oral clefts, and urinary tract defects in their infants. We evaluated whether the folic acid component of multivitamins is responsible for the reduction in risk by examining the associations between maternal use of folic acid antagonists and these congenital malformations.