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. 2016 Oct 24;6:35759. doi: 10.1038/srep35759

Figure 2. Root-to-tip regression analyses of B19 cDNA sequences used for substitution rate callculation.

Figure 2

Legend for Fig. 2 Linear regression plots of the root-to-tip divergence (nucleotide substitution/site) against sampling year; ML phylogenetic tree constructed in PhyMl v.3.0 was imported for analyses.