Kaplan-Meier estimates of survival according to the ISS stages and t(4;14) and/or del(17p). (A) EFS among patients in the various ISS stages according to the presence or not of t(4;14) and/or del(17p). (B) OS (in months). Gray lines indicate patients presenting t(4;14) or del(17p); black lines, those lacking the aberrations.