Additional data file 3.

Detailed methods for the following topics: Expression data analysis: class prediction; Error estimation using nested cross-validation; Selection of predictor genes for classification; Expression data analysis: functional group testing; and Quantitative real-time PCR. The functional group testing section includes the description of a novel algorithm for functional group analyses.

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Mao et al. Genome Biology 2005 6:R107   doi:10.1186/gb-2005-6-13-r107