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Event-free survival (EFS) stratified by serum or CSF markers. (A) EFS stratified by serum or CSF beta human chorionic gonadotropin less than 100 IU/L and ≥ 100 IU/L. (B) EFS stratified by serum or CSF beta human chorionic gonadotropin at less than 1,000 IU/L and ≥ 1,000 IU/L. (C) EFS stratified by serum or CSF α-fetoprotein at less than 10 IU/L and ≥ 10 IU/L.
