Molecules whose concentration (mM, mean ± SD) showed significant differences between the first and the second trimester of pregnancy.

Molecules whose concentration (mM, mean ± SD) showed significant differences between the first and the second trimester of pregnancy.浓度以毫摩尔（mM）为单位，以平均值±标准差（mean ± SD）表征，且在妊娠早期与妊娠中期存在显著差异的分子。