B) Palbociclib-only and palbociclib plus paclitaxel dual treated HFs show marked reductions in Ki-67 expression in the hair matrix beyond that seen with just 24h treatment Data also confirms that Ki-67 expression is unaffected by paclitaxel treatment Analysis performed using N of 6-9 HFs per condition from 3 patients. Ordinary one-way ANOVA with multiple comparisons performed. Adjusted p values = 0.0001[***] and 0.0001 [****] respectively. Values plotted represent the mean number of positive cells counted per HF analysed. Error bars are standard error. 