Table 3.

Information of gene expression datasets used in this study

Dataset	GEO access number or web location	Radiotherapy	Reference
1	GSE1456	Not available	[21]
2	GSE7390	Not available	[22]
3	NKI [26]	82.4% patients	[23]
4	GSE2034	86.7% patients	[24]
5	GSE4922	Not available	[25]