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Sandler RD, Sui X, Church TS, Fritz SL, Beattie PF, Blair SN.Sandler RD, et al. Among authors: beattie pf.J Sci Med Sport. 2014 Jul;17(4):361-5. doi: 10.1016/j.jsams.2013.07.016. Epub 2013 Aug 8.J Sci Med Sport. 2014.PMID: 23988784Free PMC article.