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Penick CA, Halawani O, Pearson B, Mathews S, López-Uribe MM, Dunn RR, Smith AA.Penick CA, et al.R Soc Open Sci. 2018 Feb 7;5(2):171332. doi: 10.1098/rsos.171332. eCollection 2018 Feb.R Soc Open Sci. 2018.PMID: 29515850Free PMC article.