[1] American Diabetes Association. 2. Classification and diagnosis of diabetes: Standards of Medical Care in Diabetes—2020. Diabetes Care 2020;43(S1):S14-31. http://dx.doi.org/10.2337/dc20-S002.http://dx.doi.org/10.2337/dc20-S002
[2] Gao CH, Sun X, Lu L, Liu FW, Yuan J. Prevalence of gestational diabetes mellitus in mainland China: A systematic review and meta-analysis. J Diabetes Investig 2019;10(1):154 − 62. http://dx.doi.org/10.1111/jdi.12854CrossRef
[3] Xia SB, Zhang JJ, Chen X, Du YS, Liu JF. Association between folic acid supplementation and the risk for gestational diabetes mellitus: a meta-analysis. Chin J Evid-Based Med 2022;22(12):1445 − 52. http://dx.doi.org/10.7507/1672-2531.202207061 (In Chinese). CrossRef
[4] Song QF, Wei J, Wang JM, Zhang L, Liu XH, Zhang YL, et al. Rate of correct use of folic acid supplementation among pregnant women - Beijing municipality, China, 2017-2019. China CDC Wkly 2021;3(37):783 − 7. http://dx.doi.org/10.46234/ccdcw2021.194CrossRef
[5] Jia XQ, Zhang L, Zhao J, Ren MY, Li ZW, Wang JM, et al. Associations between endocrine-disrupting heavy metals in maternal hair and gestational diabetes mellitus: A nested case-control study in China. Environ Int 2021;157:106770. http://dx.doi.org/10.1016/j.envint.2021.106770CrossRef
[6] Zhang J, Jin L, Wang D, Wang C, Tong MK, Yu JH, et al. Maternal periconceptional folic acid supplements use and fetus risk for limb defects. Paediatr Perinat Epidemiol 2021;35(6):645 − 53. http://dx.doi.org/10.1111/ppe.12775CrossRef
[7] Williamson JM, Arthurs AL, Smith MD, Roberts CT, Jankovic-Karasoulos T. High folate, perturbed one-carbon metabolism and gestational diabetes mellitus. Nutrients 2022;14(19):3930. http://dx.doi.org/10.3390/nu14193930CrossRef
[8] Kataria Y, Wu YX, De Hemmer Horskjær P, Mandrup-Poulsen T, Ellervik C. Iron status and gestational diabetes-a meta-analysis. Nutrients 2018;10(5):621. http://dx.doi.org/10.3390/nu10050621CrossRef
[9] WHO Guidelines Approved by the Guidelines Review Committee. WHO recommendations on antenatal care for a positive pregnancy experience. Geneva: World Health Organization. 2016. https://www.who.int/publications/i/item/9789241549912. [2023-4-10].https://www.who.int/publications/i/item/9789241549912
[10] Wang YG, Wang YY, Sun Y, Zhang NJ, Liang XS, Luo SH, et al. Serum folate mediates the associations of MTHFR rs1801133 polymorphism with blood glucose levels and gestational diabetes mellitus in Chinese Han pregnant women. Br J Nutr 2023;9:1 − 9. http://dx.doi.org/10.1017/S0007114523000314CrossRef