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Kaplan-Meier curve for recurrent overall survival of patients between groups. * Log-rank test: Group A vs. Group B(P=0.171), Group A vs. Group C (P=0.641), Group A vs. Group D(P=0.039), Group B vs. Group C(P=0.715), Group B vs. Group D(P=0.482), Group C vs. Group D(P=0.182).
