Clinical randomized controlled trial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。 - Thus, the results of controlled trials and reiews indicate that antifibrinolytic drugs are effectie hemostatic agents in cardiac surgery.
因此，對照試驗與回顧結果表明抗纖溶藥物是心臟手術有效的止血藥。
