Drawing mandibular growth graph as cervical vertebral bone age for basis.

绘制以颈椎骨龄为标准的下颌骨生长发育百分位数曲线图。

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However, little is known about the effects of PDT on the structural integrity of vertebral bone.

然而，PD T对脊椎骨结构完整性的作用却知之甚少。

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Study Design. This study investigates the effects of photodynamic therapy (PDT) on the structural integrity of vertebral bone in healthy rats.

研究设计：研究光动力疗法(PDT)对健康大鼠脊椎骨结构完整性的作用。

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