YAP1 and ependymoma: The expression outcome of the 37 genes that were common to both Snail and Slug gene-sets were annotated by their expression status within Grade II and III ependymomas of GSE64415 dataset molecularly sub-grouped into ST-EPN-RELA, ST-EPN-YAP1, PF-EPN-A, PF-EPN-B and SP-EPN [6].