Verification of gene expression profiles for colorectal cancer using 12 internet public microarray datasets

Figure 1 Process of pooling 12 microarray gene expression datasets. Model 1: 5 selective genes from the study by Quyun et al[10] and Chang et al[13]; Model 2: 7 selective genes from the study by Marshall et al[11]; Model 3: 5 selective genes from the study by Han et al[12]; Model 4: 7 selective genes from Models 1, 2 and 3. GEO: Gene Expression Omnibus; GSE: GEO series.