double blind double dummy
Double blind randomized controlled trial
randomized double blind clinical trial
Double blind clinical trial
clinical randomized controlled studies
Clinical randomized controlled trial
randomized controlled clinical study
randomized controlled clinical trail
randomized controlled clinical trial
随机对照临床试验
随机对照试验
随机对照研究
临床随机研究
randomized controlled clinical trials
Muticenter randomized controlled clinical study
Multicenter randomized controlled clinical trial
Double blind experiment
double blind experiments
double controlled rolling