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Dryden E, Hyde J, Livny A, Tula M.Dryden E, et al.Eval Program Plann. 2010 Nov;33(4):386-93. doi: 10.1016/j.evalprogplan.2010.02.004. Epub 2010 Feb 26.Eval Program Plann. 2010.PMID: 20233628
Sharifi M, Dryden EM, Horan CM, Price S, Marshall R, Hacker K, Finkelstein JA, Taveras EM.Sharifi M, et al. Among authors: dryden em.J Med Internet Res. 2013 Dec 6;15(12):e272. doi: 10.2196/jmir.2780.J Med Internet Res. 2013.PMID: 24317406Free PMC article.Clinical Trial.