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Cumulative incidence of central nervous system relapse according to (A) relapse-risk group: intermediate (white blood cell count ≤10×109/L and a platelet count ≤40×109/L) versus high (white blood cell count >10×109/L). No relapse occurred among low-risk patients (WBC count ≤10×109/L and a platelet count >40×109/L); (B) occurrence of central nervous system hemorrhage during induction; and (C) LPA trial and relapse-risk group: LPA96 versus LPA99.
