“placebo control”可以造什么句，placebo control造句

Methods A random, double blind, and placebo control study was conducted.

The answer is the "gold standard" double blind, placebo controlled study.

Many of these benefits have been proven repeatedly in double blind, placebo controlled studies, some only noted in a limited number of test subjects.

DESIGN: Randomized, single blind and placebo control prospective study based on patients.

The study was a double blind placebo controlled study adequately powered for OS as primary end-point.

Antioxidant supplementation for the prevention of kwashiorkor in Malawian children: Randomised, double blind, placebo controlled trial

So, in fact, this double blind placebo controlled study does not guarantee safety or efficacy because the test leaves far too many questions unanswered.