黑斑依其黑色素存在的部位，可分为表皮型(epidermal type)，呈淡褐色的斑塳；真皮型(dermal type)，呈灰蓝色的斑塳；以及混合型(mixed type)，呈淡褐、灰蓝色的斑塳。
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Objective: to analyze the clinical features and therapeutic effects on bullous epidermal necrolysis type drug eruption in order to improve clinical management of the disease.
目的：探讨大疱性表皮坏死松解型药疹的临床特征及治疗效果以指导今后临床。
In estrogen receptor (er) -negative tumors, AR was distinctively associated with human epidermal growth factor receptor type 2 (HER2) overexpression.
雌激素受体(ER)阴性的肿瘤，AR明显与人表皮生长因子受体2型(her2)的过度表达相关。
Stomata densities of same type leaf under epidermal are higher than upper epidermal, but were not significantly different between test-tube seedling and land seedling.
同一叶片其下表皮气孔密度大于上表皮，试管苗与土培苗两者叶片下表皮气孔密度差异不显著。
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