Objective : To investigate the clinical significance of different radical neck dissection in the senile lip cancer.

目的: 研究不同手术范围的颈淋巴清扫术在老年人唇癌治疗中的临床意义.

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Objective To evaluate the application of surgery ( MIS ) in radical neck dissection using dog as a preclinical model.

目的于动物实验中探讨微创外科在颈廓清手术中应用的可行性.

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Objective : To study the distribution and of intracranial venous reflux pathway after bilateral radical neck dissection.

目的: 研究双侧根治性颈淋巴清扫术后颅内静脉血液回流通道的分布和开放情况.

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