Narmetova M.U, Makhmudova A.D, and Suleymanova D.N. “FOLIC ACID DEPHYCYTE IN FERTILE WOMEN WITH GASTROINTESTINAL DISEASES”. World Bulletin of Public Health, vol. 7, Feb. 2022, pp. 129-30, https://scholarexpress.net/index.php/wbph/article/view/615.