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。
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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