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Survival of EPN_PFA and EPN_PFB stratified by age. (A) Progression-free survival (PFS) and (B) overall survival (OS) of EPN_PFA stratified by age greater than or less than 10 years. (C) PFS and (D) OS of EPN_PFB stratified by age greater than or less than 18 years. P values determined using log-rank test.
