Design: Data were used from the Boston Area Community Health Survey, an epidemiological study conducted from 2002-2005.
试验设计：采用2002 - 2005年间一项流行病学研究中波士顿地区人群健康问卷调查数据。
Design: the analyses were performed using data from the Growth, Exercise and Nutrition Epidemiological Study in preSchoolers.
设计：对学前教育者收集的儿童关于生长、锻炼以及营养流行病学方面的资料进行分析。
The warning is based on an ongoing epidemiological study conducted by the CDC and several state and local health departments.
这项警告是基于CDC和一些州以及地方健康部门的流行病学调查。
(OMITTED) It's still low prevalence, but you know we've just put out the synthesis report, which was an epidemiological study of HIV and its evolution in the region, and the report says that probably, at least for the near future, we'll never have an epidemic of HIV in the region.
VOA: standard.2010.07.07
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