Fig. 1.

A) Kaplan-Meier curve for local recurrence-free survival. Local control remains at 100%. B) Kaplan-Meier curve for distant metastasis-free survival. Distant metastasis-free survival rate was 97.0%, 90.4%, and 81.1% at 1 year, 2 years, and 5 years, respectively. C) Kaplan-Meier curve for overall survival. Overall survival was 98.8%, 96.10%, and 71.9% at 1 year, 2 years, and 5 years, respectively. D) Kaplan-Meier curve for disease-specific survival. Disease-specific survival was 99.4%, 97.3%, and 80.2% at 1 year, 2 years, and 5 years, respectively