Table 1. GEO information on the two series of data.

	Reference	GEO number	Total	Normal	BC	Basal	Her2+	Luminal A	Luminal B	NA
DNA Methylation
Series 1	Dedeurwaerder_et_al 2011	GSE20713	123	4	119	31	31	25	32
Series 2	Dedeurwaerder_et_al 2011	GSE22249	125	8	117	35	25	27	30
Gene Expression
Series 1	Dedeurwaerder_et_al 2011	GSE20713	90	2	88	27	26	13	22	7

GEO: Gene expression omnibus

BC: breast cancer

NA: non-classified