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Figure 3: The mean value of computed TCP (±standard deviation). (a) Comparison of TCPs between EUD and LQ models, individually for different values of SF_{2} (0.3, 0.4, 0.5, 0.6, and 0.7 Gray), using paired samples ttest. (b) Comparison of TCPs in the middle group (Poisson model: α/β =8, and EUD and LQ models: SF_{2} = 0.5) among the three models. Using oneway repeated measures ANOVA with a Greenhouse–Geisser correction, followed by Bonferroni test; The groups with a similar English letter are not statistically significantly different from each other. NS = Not significant, ***P < 0.001, and n = 30. EUD = Equivalent uniform dose; TCP = Tumor control probability; LQ = Linear quadratic 
