A phase II clinical trial doesn't need placebo. 二期临床不需要placebo
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• uncontrolled study和controlled study结果可能很不一样 -过来人2- ♂ (0 bytes) () 02/03/2021 postreply 17:11:09
• uncontrolled study和controlled study结果可能很不一样 -过来人2- ♂ (0 bytes) () 02/03/2021 postreply 17:11:09