主要观察指标：各组大鼠血清睾酮含量、睾丸生精细胞增殖细胞核抗原的表达比较。
MAIN OUTCOME MEASURES the content of serum testosterone and the expression of proliferating cell nuclear antigen of testicular spermatogenic cell of rats in each group.
主要观察指标：各组大鼠血清睾酮含量、睾丸生精细胞增殖细胞核抗原的表达比较。
MAIN OUTCOME MEASURES the content of serum testosterone and the expression of proliferating cell nuclear antigen of testicular spermatogenic cell of rats in each group.
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