Comparison between 3′IVT and exon array shows number of genes in common for comparisons Dysplasia vs Transgenic, Dysplasia vs Non-transgenic, Tumor vs Transgenic and Tumor vs Non-transgenic. For exon array gene expression estimated at core probeset level using expression console and analyzed with ArrayTrack software at FDR of 0.05, fold change ≥2, mean channel intensity = 100, bad flag = 4, compared with 3′IVT array analyzed with ArrayTrack software where in A. 3′IVT analyzed at criteria at FDR of 0.05, fold change ≥2, mean channel intensity = 100, bad flag = 5. B. 3′IVT analyzed criteria at FDR of 0.001, fold change ≥2, mean channel intensity = 100, bad flag = 5.