Objective To investigate the relationship between immunophenotype and event-free survival (EFS) in children with acute lymphoblastic leukemia (ALL).

目的探讨儿童急性淋巴细胞白血病(all)免疫表型与无病生存期(EFS)的关系。

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Objective To analyse the treatment outcome of 158 childhood acute lymphoblastic leukemia (ALL) patients, and explore how to improve the event-free survival(EFS) rate in ALL.

目的对15 8例儿童急性淋巴细胞白血病（ALL）患儿治疗结果进行分析，探讨如何进一步提高儿童ALL无事件生存（EFS）率。

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The primary end point was event-free survival (EFS).

主要终点为无病生存期（EFS）。

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