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Phylogenetic trees of the 5′-NCR, VP1, 3C, and 3D regions of three HRV-C strains. The analysis included 793, 1,004, 549, and 1,394 nucleotide positions in each 5′-NCR, VP1, 3C, and 3D region, respectively. The scale bars indicate the estimated number of substitutions per 50 bases. PV, poliovirus.
