Table 2. Gene expression datasets used in the experiments.

Data ID	Cancer name	Paper information	Number of samples	Number of Cancer(Normal) samples	Number of Probeset
1	bladder	Dyrskjøt,L. et al. Cancer Res 2004	43	29(14)	22215
2	brain	Sun,L. et al. Cancer Cell 2006	61	38(23)	54613
3	cervical	Scotto,L. et al. Genes Chromosomes Cancer 2008	52	28(24)	22215
4	cervical	Zhai,Y. et al. Cancer Res 2007	31	21(10)	22215
5	colorectal	Sabates-Bellver,J. et al. Mol Cancer Res 2007	64	32(32)	54613
6	colorectal	Hong,Y. et al. Clin Exp Metastasis 2010	82	70(12)	54613
7	esophageal	Hu,N. et al. BMC Genomics 2010	34	17(17)	22215
8	esophageal	Su,H. et al. Clin Cancer Res 2011	106	53(53)	22215
9	esophageal	Su,H. et al. Clin Cancer Res 2011	102	51(51)	22477
10	Head neck	Kuriakose,MA. et al. Cell Mol Life Sci 2004	44	22(22)	12558
11	Head neck	Pyeon,D. et al. Cancer Res 2007	56	42(14)	54613
12	leukemia	Stirewalt,DL. et al. Genes Chromosomes Cancer 2008	64	26(38)	22215
13	lung	Landi,MT. et al. PLoS One 2008	107	58(49)	22215
14	lung	Spira,A. et al. Nat Med 2007	187	97(90)	22215
15	lung	Stearman,RS. et al. Am J Pathol 2005	39	20(19)	12558
16	lung	Su,LJ. et al. BMC Genomics 2007	54	27(27)	22215
17	pancreatic	Badea,Pancreas. et al. Hepatogastroenterology 2008	78	39(39)	54613
18	pancreatic	Pei,Pancreas. et al. Cancer Cell 2009	52	36(16)	54613
19	prostate	Yu,YP. et al. J Clin Oncol 2004	75	58(17)	12579
20	prostate	Wallace,TA. et al. Cancer Res 2008	87	69(18)	22215