Hair shaft abnormalities present as changes of hair color, density, structure and the length.

毛干的异常表现为毛发颜色、密度、结构和长度的改变。

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Hair shaft abnormalities present as changes of hair color, density, structure and the length.

毛干的异常表现为毛发颜色、密度、结构和长度的改变。

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