B) No significant differences in EdU incorporation were found in any experimental conditions compared to vehicle. DNA synthesis in the hair matrix resumed in the palbociclib-only and palbociclib plus paclitaxel dual treated conditions following washout Ordinary one-way ANOVA with multiple comparisons performed using N of 8-13 HFs from 3 patients. Values plotted represent the mean total number of cells counted per HF analysed. Error bars are standard error. 