Figure 1From: Evaluation of gene expression data generated from expired Affymetrix GeneChip® microarrays using MAQC reference RNA samplesThe workflow of study design and data analysis New gene expression data were generated in 2009 with expired U133A microarrays and unexpired U133Plus2 microarrays using the same MAQC reference RNA samples and compared to the microarray and TaqMan® gene expression data generated in 2005 by the MAQC project.Back to article page