B-cell count and absolute clone values in persistent CLL-like MBL are not significantly different between first and follow-up evaluations. The box-plots show the distribution of B-cell count (A) and absolute clone (B) values in persistent CLL-like MBL at follow-up evaluation. Notched boxes represent 25th and 75th percentile values, and the line in the middle corresponds to median value. Vertical lines represent the highest and the lowest values that are not outliers or extreme values. The differences between the 2 time points are not statistically significant.