多数继发性白血病病例都属于急性非淋巴性白血病或骨髓发育不良性综合征，它是一种白血病前期状态。

Most of these secondary cases of leukaemia are acute non-lymphocytic leukaemias or myelodysplastic syndrome, which is a preleukaemic condition.

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目的：探讨急性淋巴细胞白血病(all)与急性非淋巴细胞白血病(ANLL) AT M基因和BRCA2基因杂合性缺失及其相互关系。

Objective: To investigate the loss of heterozygosity (LOH) of ATM gene and BRCA2 gene and explore the relationship between two genes in patients with ALL and ANLL.

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目的：探讨我院急性非淋巴细胞性白血病(ANLL)患者的治疗效果及其预后相关因素。

Objective: to investigated the therapy effect and prognosis related factors in the Acute Non-lymphocytic leukemia (ANLL) patients.

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