Planning for SIAs provides key demographic data – “finding” children in remote villages and households for the first time, and "mapping" their location for future health services.

计划开展补充免疫活动（SIAs）提供了重要的人口统计学数据——首次在边远村庄和家庭中“发现”儿童，并在“地图上标出”他们所在的地点以便于今后的保健服务。

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Now,after analyzing data from a large national health and nutrition survey, Skinner reports finding similarly elevated levels in obese children as well.

VOA: standard.2010.03.09

At precisely the same time, two University of Melbourne scientists published a paper in Geophysical Research letters, studying virtually the same data and finding little significant change.

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Methods for finding data and accessing external data will have to be developed.

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Pettit marshals data suggesting that finding some way to include incarcerated Americans in demographic trends could make a big difference.

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