NFKB1 and plasma cell myeloma: Three novel subsets of multiple myeloma were identified, using data of the 320 newly diagnosed myeloma patients included in the Dutch-Belgian/German HOVON-65/GMMG-HD4 trial, in addition to 7 subgroups described in the 2006 UAMS classification, which were NFκB, CTA, and PRL3 clusters [70].