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Figure 3 | BMC Evolutionary Biology

Figure 3

From: Dating the time of viral subtype divergence

Figure 3

Histograms of the time of most recent common ancestor for subtypes A-H3N2, B and C, respectively, derived from molecular clock estimates on hemagglutinin (HA), matrix (MP) and nonstructural (NS) gene sequences. (a) Subtype A-H3N2 (b) Subtype B (c) Subtype C.

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