NOS activity was significantly increased in bradykinin perfusion group comparing with control group.

缓激肽灌注组的NOS活性显著高于对照组。

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Comparing with control group, bleeding volume of vagona and bleeding period were reduced obviously(P<0.05).

宫安合剂二组孕产物排出时间较对照组明显缩短（P＜0.05）。

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Comparing with control group, the generation after 80s shows higher motives in "excellent quality" and "self - reward".

与对照组的比较研究显示，“80后”群体较之对照组在“品质卓越”和“自我奖赏”动机方面表现更强。

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Both projects were rigorous randomized trials, comparing kids who got pre-K benefits with a control group that didn't.

WSJ: Review & Outlook: Head Start for All