double-blind randomized controlled trial 随机双盲对照试验
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
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。
DESIGN: a completely randomized, double blind controlled trial was conducted.
设计:完全随机双盲实验对照研究。
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