默沙东 诊疗手册

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糙皮病导致的颈部周围皮疹
Rash Around the Neck Due to Pellagra
糙皮病导致的颈部周围皮疹

糙皮病导致颈部周围深色鳞状皮疹,呈项链形状。

美国疾病控制与预防中心公共健康图像库供图。

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烟酸缺乏症