Fig. 7

Principal component analyses of whole TCGA dataset. a/b: the analysis was performed on the 59 normal samples and annotated tumors for BRAF mutational status (a) or histological subtypes (b). Non annotated samples for one of these parameters were not used in the corresponding PCA. No additional filtering criterion was used. The analyses were performed with the expression of the 14 validated down-regulated microRNAs in PTC. Numbers in brackets correspond to the number of available samples in the TCGA dataset for each tissue type