Fig. 5From: Novel reference genes in colorectal cancer identify a distinct subset of high stage tumors and their associated histologically normal colonic tissuesHCA and PCA analysis of reference genes in 50 CRC pairs (TCGA). a. Differential expression of 21 classical reference genes among 50 CRC pairs (TCGA) in HCA. b. No differential expression of 42 reference genes among 50 CRC pairs (TCGA) in HCABack to article page