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van den Boogaard NM, Kersten FA, Goddijn M, Bossuyt PM, van der Veen F, Hompes PG, Hermens RP, Braat DD, Mol BW, Nelen WL; Improvement Study Group.van den Boogaard NM, et al.Implement Sci. 2013 May 20;8:53. doi: 10.1186/1748-5908-8-53.Implement Sci. 2013.PMID: 23688282Free PMC article.Clinical Trial.