Figure 1

Ki-67 expression. Percentage of Ki-67 expression for each experimental group. Data are expressed as mean ± standard deviation. * p < 0.05 compared to baseline of the same timepoint. † p < 0.01 compared to baseline of the same timepoint. ‡ p < 0.01 compared to EPO group of the same timepoint. ◊ p < 0.01 compared to EPO group of the same timepoint.