string: The high-risk molecular subgroups included the MMSET subtype with a t(4;14) translocation, the MAF/MAFB subtype with a t(14;16) or a t(14;20) translocation, and the proliferation subtype; the low-risk groups consisted of subtypes designated hyperdiploid or low bone disease or marked by CCND1/CCND3 spike signatures (CD-1 or CD-2) (59% vs 35%; P .