Personalized prediction model for sustained TFR based on halving time (days), transcript type, and duration of TKI exposure (years). The color scale to predict the probability of sustained TFR is depicted on the right side of the figure and represents the percent probability. Patients were divided into the major transcript groups e14a2 and e13a2. The vertical axis is the years of TKI exposure before TFR attempt and the horizontal axis is the halving time.