C qRT-PCR for mRNA expression of the anoikis-related markers Bim and Bmf in sorted n-B (non-bulge), bBSC (basal BSCs) and sbBSC (suprabasal BSCs) (n=3 biological replicates; mean ± standard error of mean (SEM); * p<0.05, ns=not significant, two-way ANOVA test). 