[FDA]トウモロコシのマサ粉に葉酸を加えると先天異常を防ぐ可能性がある Adding Folic Acid to Corn Masa Flour May Prevent Birth Defects 01/06/2021 https://www.fda.gov/consumers/consumer-updates/adding-folic-acid-corn-masa-flour-may-prevent-birt…