The answer is the "gold standard" double blind, placebocontrolled study.
答案是“金标准”,双盲,安慰剂对照研究。
2
So, in fact, this double blind placebocontrolled study does not guarantee safety or efficacy because the test leaves far too many questions unanswered.
所以实际上,双盲对照研究并不会保证疗效和安全,因为它留下太多无法回答的问题。
3
As a research target, autism has suffered from companies' reluctance to run large placebo-controlled trials.