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Figure 2.
Cross-validated pruned classification tree for rifampin susceptibility and resistance based on amino acid sequence data from positions 511–533 of the β subunit of RNA polymerase of Mycobacterium tuberculosis. The numbers of observations in each class, susceptible or resistant, are given for each node.
Cummings and Segal BMC Bioinformatics 2004 5:137 doi:10.1186/1471-2105-5-137
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