a randomized double-blind trial 随机双盲对照研究
Double-Blind Randomized Control Trial 随机双盲法
randomized double blind clinical trial 随机双盲临床试验
randomized double-blind clinical trial 随机双盲临床试验
randomized double-blind controlled trial 双盲随机对照试验
randomized double blind controlled trial 随机对照双盲试验
a randomized double-blind controlled trial 随机双盲对照试验
Methods Multi-center randomized double-blind trial with positive control and split-mouth comparison was designed.
方法多中心随机、双盲、阳性药物对照、左右半口对照设计。
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。
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