The proportion of cells with Amp1q21 and the copy number of 1q21 in each patient at diagnosis and relapse in paired patients. Twenty-eight patients had 1q21 FISH results available at both diagnosis and relapse. The proportion of cells with Amp1q21 is indicated by the height of the bar on the y-axis. Each sample is represented by a left and right bar indicating the proportion of cells with Amp1q21 at diagnosis and relapse, respectively. The proportion of cells with 3 and with 4 or more copies of 1q21 in each sample is indicated by blue and red, respectively. The numbers below each patient number indicate the copy number of 1q21 at diagnosis and relapse. Sample ID is same as that in Table S4.