Methods We conducted a multicenter, randomized, double-blind trial involving nulliparous women who were at low risk for preeclampsia.
方法我们进行了一项多中心、随机、双盲试验,纳入先兆子痫危险低的未经产妇女。
Methods A randomized double-blind parallel controlled clinical trial was conducted.
方法本研究采用随机、双盲、平行对照的临床研究方法。
Methods a multicenter, double-blind, randomized controlled trial was conducted.
方法用多中心随机双盲对照试验。
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