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To investigate the efficacy and toxicity of modified FLAG and CAG on relapsed or refractory acute myeloid leukemia (AML).Sixty-one patients with relapsed or refractory AML were divided into modified FLAG or CAG group. In modified FLAG group: G-CSF 200 μg·m⁻²·d⁻¹ on days 0-5; fludarabine 30 mg·m⁻²·d⁻¹ on days 1-5; Ara-C 1.0 g·m⁻²·d⁻¹ on days 1-5. In CAG group: Ara-C 10 mg·m⁻²·12 h⁻¹ on days 1-14, aclarubicin 20 mg/d on days 1-4, G-CSF 200 μg·m⁻²·d⁻¹ on days 0 1-14.The complete response (CR) rate was 43% (12/28) and the partial response (PR) rate 18% (5/28) with the overall response (OR) rate of 61% in modified FLAG group. CR rate was 21% (7/33) and PR rate 15% (5/33) with OR rate of 36% in CAG group. There was significant statistical difference between two groups (P0.05). The main toxicities of these groups were myelosupression and infection. The infection rate was 68% (19/28) in modified FLAG group (twenty-two patients were treated in the sterile laminar flow ward duing neutropenic period), treatment related mortality (TRM) in modified FLAG group was 7%; The infection rate was 55% (18/33) in CAG group (no patient was treated in the sterile laminar flow ward), TRM in CAG group was 3%. There was no significant statistical difference in two groups (P0.05).Modified FLAG was effective for relapsed or refractory AML. The supportive cares to strengthen infection-controlled measures and shorten the period of bone marrow suppression produced the additional effect. CAG regimen has low adverse reactions and could be individualized to elder or weak patients.

This thesis focuses on how the Chinese language influences English learners, which will help English learners to recognize their difficulties in English learning and know how to break away interference from their native language.