Her Web site says the school tries to show them "how to locate and use the resources available to them, within themselves and their communities."

VOA: special.2010.05.03

So more than doubling the risk can certainly site to the population Now these kind of results show how important it is to do studies that don't group everybody in the population together.

由图可见,发病率差异量超过一倍,这些研究结果表明,在研究过程中分组的重要性

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