FIGURE 2. Actuarial cancer-specific survival curves of three independent prognostic factors in multivariate analysis under Cox proportional hazards model: age (A), the presence of distant metastasis (B), and completeness of excision (C).
FIGURE 2. Actuarial cancer-specific survival curves of three independent prognostic factors in multivariate analysis under Cox proportional hazards model: age (A), the presence of distant metastasis (B), and completeness of excision (C).