Clinical characteristics of patients and newborns.

<p>Data are presented as mean ± SD (range). All pregnancies were singleton and pregnant women were normotensive, nonsmoking, non-alcohol or drug consuming, and without intrauterine infection or any other medical or obstetrical complications. In Pulsatility index left and right uterine artery, *<i>P</i><0.05 versus values in second and third trimester; †<i>P</i><0.05 versus values in third trimester.