second pregnancy trimester中妊娠三月
second-trimester中期妊娠
second-trimester abortion妊娠中三月的流产
second-trimester fetal reduction妊娠中期减胎术
second-trimester secrum triple test血清学筛选
second trimester of pregnancy妊娠中三个月;翻译
abortion in second trimester中期妊娠流产
second trimester fetal中孕胎儿
Second and third trimester孕中晚期
The differences of SF between groups at the second trimester or at the third trimester were significant(P<0.05,P<0.01).
孕中期及孕晚期各组间SF的差异有统计学意义(P<0.05,P<0.01)。
参考来源 - 孕母铁缺乏对新生儿铁水平的影响