With the updated microarray-based coexpression, using the recent public microarray data stored in ArrayExpress (26), Table 1 shows the summary of the platforms for coexpression data in COXPRESdb. Note that we did not update the three platforms (Hsa, Mmu, Rno) that have more than 20 000 samples. These three platforms are relatively old and already include sufficient numbers of samples, and thus we regarded these coexpression data as having reached the quality plateau. The procedure for the calculation of the microarray-based coexpression is the same as in our previous report (16).