Fig. 6From: Bystander effects of ionizing radiation: conditioned media from X-ray irradiated MCF-7 cells increases the angiogenic ability of endothelial cellsFlow cytometry analysis of CD34 marker. Data shows the increasing percentage of CD34 positive HUVECs exposed to irradiated conditioned media over 48 h (a, b). One-way ANOVA with Tukey test was used. All values are shown as means ± SD; (3 biologically independent experiments). * P < 0.05, ** P < 0.01Back to article page