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Hartling L, Featherstone R, Nuspl M, Shave K, Dryden DM, Vandermeer B.Hartling L, et al. Among authors: vandermeer b.BMC Med Res Methodol. 2016 Sep 26;16(1):127. doi: 10.1186/s12874-016-0232-1.BMC Med Res Methodol. 2016.PMID: 27670136Free PMC article.