Table 1. A summary of the cancer datasets used in our transcriptomic data analysis.

	set1	set2	pairs
breast cancer	GSE14999 [44]	GSE15852 [45]	61/43
colon cancer	GSE18105 [46]	GSE25070 [47]	17/26
liver cancer	GSE22058 [48]	GSE25097 [49]	97/238
lung adenocarcinoma	GSE31552 [50]	GSE7670 [51]	31/26
lung squamous cell carcinoma	GSE31446 [52]	GSE31552 [50]	13/17
prostate cancer	GSE21034 [53]	GSE6608 [54]	29/58