Shared genes by all cancers (Figure 1b) with an adverse prognosis (high positive global meta-z-scores), such as MAD2L1, CCNB1, NUF2 and UBE2C, were associated with gene ontology (GO) enrichment analysis terms related to proliferation, replication and mitosis, similar to adult tumors [27] (Figure 1c). This evidence concerns the gene CCNB1 and cancer.