“…The MAQC project was developed by the US Food and Drug Administration (FDA) to provide standards and quality control metrics and involved six centers [Applied Biosystems (Thermo Fisher Scientific, Waltham, MA, USA), Affymetrix (Santa Clara, CA, USA), Agilent Technologies (Santa Clara, CA, USA), GE Healthcare (Chicago, IL, USA), Illumina (San Diego, CA, USA) and Eppendorf (Hamburg, Germany)] that are major providers of microarray platforms and RNA samples 1, 8. The reproducibility of the top 100 and 1000 significant genes was estimated inter‐ and intra‐platform by the three statistical methods, and heatmaps were drawn with the matrix of each batch.…”