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

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