Methods: Fresh health premolars were collected, divided into some groups according to age, embedded in paraffin and cut into slices.

  • 方法:收集健康新鲜的前磨牙,按年龄分组,石蜡包埋切片,免疫组织化学与图像定量分析。

  • 互联网摘选 2025-01-20 11:46:39

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