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Cunningham-Sabo L, Lohse B, Smith S, Browning R, Strutz E, Nigg C, Balgopal M, Kelly K, Ruder E.Cunningham-Sabo L, et al. Among authors: strutz e.BMC Public Health. 2016 May 26;16:444. doi: 10.1186/s12889-016-3118-6.BMC Public Health. 2016.PMID: 27230565Free PMC article.Clinical Trial.