Chronic ulcer of skin (CUS), a common clinical disease, can be secondary to many diseases and be treated difficutly.

慢性皮肤溃疡是临床常见病，可继发于很多疾病，治疗十分棘手。

youdao

Chronic ulcer of skin (CUS), a common clinical disease, can be secondary to many diseases and be treated difficutly.

慢性皮肤溃疡是临床常见病，可继发于很多疾病，治疗十分棘手。

youdao