目的：观察Q -开关红宝石激光选择性治疗面部色素增加性病变的疗效和可能产生的副作用。

Objective To observe clinical changes in patients with facial pigmentation treated with Q-switched Ruby laser.

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提要目的：观察Q -开关红宝石激光治疗面部浅表色素性皮肤病疗效。

Objective: to observe clinical changes in patients with facial epidermal pigmented dermatoses treated with Q-switched Ruby laser.

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