A Novel Tool to Predict the Overall Survival of High-Grade Osteosarcoma Patients after Neoadjuvant Chemotherapy: A Large Population-Based Cohort Study

Figure 7

Kaplan–Meier survival analysis and log-rank tests used to compare OS in the low-risk, middle-risk, and high-risk groups of all patients in the training cohort (a) and validation cohort (b). OS, overall survival.

(a)

(b)