Coating: granule, pill protection layer, pigmentation, controlled release, film, or bowels solved coating.
包衣：颗粒、丸剂保护层、着色、缓释、薄膜、肠溶包衣等。
Objective: to improve an identification method for Thin layer chromatograph of Yiqing Granule.
目的：对一清颗粒薄层鉴别方法的改进。
Results: There was no melanin granule in basal cell layer in depigmented skin of 2 cases, which coincided in the pathogenic change of vitiligo.
结果：2例患者的皮肤色素脱失处基底层均未见黑素颗粒，符合白癜风的病理改变；
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