Fig. 5
Kaplan–Meier curves of PFS by the three models. A-C: Training dataset. D-F: Internal validation dataset. G-I: External validation dataset. (log-rank test: P < 0.01)
Fig. 5 | Radiation Oncology
Kaplan–Meier curves of PFS by the three models. A-C: Training dataset. D-F: Internal validation dataset. G-I: External validation dataset. (log-rank test: P < 0.01)