Fig. 2From: Gene expression identifies heterogeneity of metastatic behavior among gastrointestinal stromal tumorsClustering of gene expression in the 60 GIST samples. The samples were clustered using the probes in the pooled gene set as described in the text. Groups A and B (= B1 + B2) are defined by the first branch point in the clustering. Groups B1 and B2 are defined by the second branch point in Group B Back to article page