Kaplan-Meier survival plots. (A) Survival comparison of the 43 t(4;14)^POS patients expressing or not expressing FGFR3, 31 and 12 patients, respectively. (B) Survival comparison of MB4-1 versus MB4-2/MB4-3 combined t(4;14)^POS patients, 30 and 13 patients, respectively, subgrouped based on their ability to encode a full-length MMSET protein as a result of their respective breakpoint types.