Improvement of probe reproducibility in microarray v.3. The distributions of probe intensity CV are presented in a series of six boxes (interquartile range) and whiskers plots. Hybridizations were performed with the reference common cRNA pool on microarray v.2 (5 hybridizations, REF_v.2_M24h, REF_v.2_M48h, REF_v.2_M96h, REF_v.2_C24h, REF_v.2_C48h, each with 4 technical replicates per probe) and v.3 (REF_v.3, 12 technical replicates per probe). The cRNAs were labelled with Cy5. The median CV is 0.14, 0.10, 0.16, 0.10, 0.09 and 0.05 for REF_v.2_M24h, REF_v.2_M48h, REF_v.2_M96h, REF_v.2_C24h, REF_v.2_C48h and REF_v.3, respectively.