Objective To observe the clinic result in reconstruction of massive lower lip defect using lateral upper lip tissue flap.
目的：探求上唇外侧组织瓣在修复较大面积下唇缺损中的作用。
Objective To observe the clinic result in reconstruction of massive lower lip defect using lateral upper lip tissue flap.
目的：探求上唇外侧组织瓣在修复较大面积下唇缺损中的作用。
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