
Changes of the thyroid hormones and vitamin B12 levels of pregnant women with the advanced age during the second trimester of pregnancy and their correlation with fetal growth restriction
HE Lu, WU Jinhong, YANG Kun, LIU Fang
Chinese Journal of Family Planning ›› 2025, Vol. 33 ›› Issue (6) : 1420.
Changes of the thyroid hormones and vitamin B12 levels of pregnant women with the advanced age during the second trimester of pregnancy and their correlation with fetal growth restriction
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