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Longitudinal drop-out and weighting against its bias.
Schmidt SCE, Woll A. Schmidt SCE, et al. BMC Med Res Methodol. 2017 Dec 8;17(1):164. doi: 10.1186/s12874-017-0446-x. BMC Med Res Methodol. 2017. PMID: 29221434 Free PMC article.