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AHRQ--Agency for Healthcare Research and Quality: Advancing Excellence in Health Care
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Research Review - Final – Oct. 21, 2011

Attention Deficit Hyperactivity Disorder: Effectiveness of Treatment in At-Risk Preschoolers; Long- Term Effectiveness in All Ages; and Variability in Prevalence, Diagnosis, and Treatment


Report being updated: This report was assessed in August 2014 and conclusions were considered possibly out of date. This report is being updated.

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