The protection effect has dose dependency and limitation, can not still improve the survival rate.
其细胞保护作用有一定剂量依赖性和局限性。尚不能影响肿瘤患者的生存率。
Objective to investigate the surgical treatment of primary sacral tumor, and to improve survival rate.
目的探讨原发性骶骨肿瘤的手术治疗方法，提高骶骨肿瘤的生存率。
Objective to investigate the surgical treatment of primary sacral tumor, and to improve survival rate.
目的探讨原发性骶骨肿瘤的手术治疗方法，提高骶骨肿瘤的生存率。
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