Figure 1.

Aggregated tree built for a dataset containing 375 HA protein coding sequences for Influenza A H3N2 viruses extracted from human hosts during a 30-year period 1970–2000. The full tree has been built using F84 distance and the neighbor-joining method.

Zaslavsky et al. BMC Bioinformatics 2008 9:237   doi:10.1186/1471-2105-9-237
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