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Wang XQ, Vincent BM, Wiitala WL, Luginbill KA, Viglianti EM, Prescott HC, Iwashyna TJ.Wang XQ, et al. Among authors: wiitala wl.BMC Med Res Methodol. 2019 May 8;19(1):94. doi: 10.1186/s12874-019-0740-x.BMC Med Res Methodol. 2019.PMID: 31068135Free PMC article.
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