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Rivera-Rodriguez C, Haneuse S, Wang M, Spiegelman D.Rivera-Rodriguez C, et al.Stat Methods Med Res. 2020 Feb;29(2):344-358. doi: 10.1177/0962280219833415. Epub 2019 Mar 5.Stat Methods Med Res. 2020.PMID: 30834815Free PMC article.