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Key Record Dates

ClinicalTrials.gov Identifier: NCT00848900
Brief Title: Guangzhou Outdoor Activity Longitudinal Study

First Submitted : February 19, 2009
First Submitted that Met QC Criteria : February 19, 2009
First Posted : February 20, 2009 (Estimate)

Last Update Submitted that Met QC Criteria : November 19, 2010
Last Update Posted : November 22, 2010 (Estimate)