目的探讨窄谱中波紫外线（NB-UVB） 联合他扎罗汀凝胶治疗寻常型银屑病的临床疗效及安全性。

Objective To study the efficacy and safety of combined narrow band-ultraviolet B(NB-UVB) and tazarrotene gel in treatment of psoriasis vulgaris.

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前言：目的：探求窄谱中波紫外线的最佳有效治疗剂量，为临床治疗提供理论依据。

Objective: To determine the suitable dose of narrow-band ultraviolet and offer the theory support for the clinical use.

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目的观察窄谱中波紫外线（NB-UVB）治疗寻常型银屑病的疗效及安全性。

Objective To observe the effect and the safety of narrow-band ultraviolet B(NB-UVB) in the treatment of psoriasis vulgaris.

youdao

目的观察窄谱中波紫外线（NB-UVB）治疗寻常型银屑病的疗效及安全性。

Objective To observe the effect and the safety of narrow-band ultraviolet B(NB-UVB) in the treatment of psoriasis vulgaris.

youdao