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. 2013 Jun 19;8(6):e67157. doi: 10.1371/journal.pone.0067157

Figure 4. Phylogeny of E6 based on 875 nucleotides of the VP1 gene generated by the neighbor-joining algorithm implemented in MEGA (version 5.0) software using the Kimura 2-parameter substitution model and 1000 bootstrap pseudo-replicates.

Figure 4

•Strains isolated in this investigation. ♦Strains isolated from Shandong. ○Strains isolated from other provinces of China.