She and her colleagues have just completed a review of 11 medical studies that measured the effectiveness of advance provision of emergency contraception.

VOA: standard.2010.03.22

It wasn't actually a study itself on the Mediterranean Diet, but it was a review of other studies that had been done using this statistical technique called meta-analysis.

该研究本身并不直接研究地中海式饮食法,而是运用荟萃分析的统计方法,对其它已有的相关研究进行研究

耶鲁公开课 - 关于食物的心理学、生物学和政治学课程节选

And so,we wanted to do a systematic review of all the literature, find all of the appropriate studies and pool them to see if together, there's a benefit for replacing saturated fat specifically with polyunsaturated fat."

VOA: standard.2010.03.25

He said they looked at results of two studies he ordered shortly after the attempted attack: a review of airline screening procedures and another on the computerized government lists of individuals who might pose a security risk.

VOA: standard.2010.01.05