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Figure 1. Bystander double strand break(DSB) induction response as a function of time in primary human fibroblasts. The fractions of DSB-positive cells were calculated 2.5, 5, 10, 15, 30, 40 and 60 min after irradiation with 1 cGy of 
-particles. Data were pooled from three or four individual experiments. Error bars represent the standard deviations of the means. The symbols * and ** depict values that are statistically significant (p<0.05 and p<0.01, respectively) between the corresponding control and experimental groups.
