Correlation between UtA-PI, UtA-RI and S/D values measured by ultrasound in different pregnancy periods and the prediction of the condition of pregnant women with hypertension in pregnancy and the maternal and infant outcome Screening Fetal Down's Syndrome

Zechang HUANG, Yanchao LIN, Huimin LI, Yuchun HE, Pai LIN, Kaihui XING