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Turner-McGrievy GM, Beets MW, Moore JB, Kaczynski AT, Barr-Anderson DJ, Tate DF.Turner-McGrievy GM, et al.J Am Med Inform Assoc. 2013 May 1;20(3):513-8. doi: 10.1136/amiajnl-2012-001510. Epub 2013 Feb 21.J Am Med Inform Assoc. 2013.PMID: 23429637Free PMC article.Clinical Trial.