Figure 3
From: ArrayWiki: an enabling technology for sharing public microarray data repositories and meta-analyses
Venn diagram showing overlaps in experimental data between repositories. In [20], a similar Venn diagram is given representing all data collected in the effort to build the repository. This diagram differs in that it is not limited to Affymetrix experiments with available CEL files. This may account for the discrepancy in overlap between GEO and ArrayExpress in the two results.