Methods: Divided the rats into treatment group, model group, sham operation group and normal group by sortition randomization method.

实验方法：将大鼠用抽签法随机分组，分为治疗组、模型组、假手术组和正常对照组。

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Due to current address-space randomization techniques having only limited timings to deploy randomization, this paper proposes a new method to re-randomize the address space at runtime.

针对现有的地址空间随机化技术实施随机化时机有限的问题，提出一种在运行时刻能重复随机化部分地址空间对象的方法。

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Methods The study was strictly designed with randomization, double blinding, and placebo controlled method to observe the efficacy and immune memory 11 years following hepatitis B vaccination.

方法按随机、双盲、安慰剂对照严格设计，对乙型肝炎疫苗接种11年后效果及免疫记忆进行观察。

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Methods The study was strictly designed with randomization, double blinding, and placebo controlled method to observe the efficacy and immune memory 11 years following hepatitis B vaccination.

方法按随机、双盲、安慰剂对照严格设计，对乙型肝炎疫苗接种11年后效果及免疫记忆进行观察。

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