Randomized controlled trials的用法和樣例：
例句
- During the randomized controlled trial, there was a nonsignificant trend favoring active treatment.
在隨機對照試驗中，出現一個有利於治療組的非顯著性趨勢。 - The potential value of DHEA therapy for women still requires exploration in adequately powered well-designed randomised placebo-controlled trials.
脫氫表雄酮對女性的潛在治療價值需要充分有力精心設計的隨機安慰劑對照試驗來探索。
