Figure 1

Hierarchical clustering of the expression data for the significant genes in advanced stage MYCN non-amplified tumors. (A) Oligonucleotide data. (B) cDNA data. The colored bars at the top of the figure denote the values of the following clinical variables: Status: black – unfavourable outcome, grey – favourable outcome; Age (at diagnosis): black – older than one year, grey – younger than one year; Stage: black – INSS stage 4, grey – INSS stage 3.