Relapse-free and overall survival for neuroblastic tumors (NBL) only based on resection approach with subgroup analyses for tumor volume < 100 mL, high stage, high risk, and IDRF. Kaplan-Meier plots showing (A, B) RFS and OS from NBL with resection of TV <100 mL based on operative approach. (C, D) RFS and OS from Stage III and IV NBL based on operative approach. (E, F) RFS and OS from high-risk NBL based on operative approach. (G, H) RFS and OS from NBL with resection of TV <100 mL based on presence or absence of IDRF. P values were assessed with the log-rank test for equality of survival functions.