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. 2012 Aug 15;120(11):1607–1612. doi: 10.1289/ehp.1104242

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MSDs during the previous 2 weeks at baseline (blue) and 12 months (gray) for HEAL (all participants), ICAS, and NCICAS participants who received the study intervention. Changes in MSDs are shown with 95% CIs and p-values comparing symptoms at baseline and 12 months.