Finally, as we observed a significant association between telomere shortening and high expression of the proliferation marker Ki‐67 (Figure 3D), and high correlation between Ki‐67 protein and mRNA expression abundancy (Figure S7A), we used this later marker (MKI67 gene expression) to select TCGA tumours with putative short telomeres (Figure S7B). Here, MKI67 is linked to neoplasm.