Objective:To explore the scope of endoscopic transnasal approaches in the surgery at base of skull.
前言： 目的：探讨鼻内镜技术在颅底手术的应用范围。
The design of the cystic duct endoscope greatly expands the scope of application of the surgery, and improves the safety and convenience of the surgery.
此胆囊管镜的设计，将使得手术的使用范围大大扩展，并提高手术的安全性和便利性。
Objective: to study the method and the scope of the application of skin dilation in plastic surgery of children in order to enhance the efficacy of pediatric plastic surgery.
目的：探讨皮肤扩张术在儿童整形外科中的应用方法，以扩大其应用范围，提高小儿整形外科的手术疗效。
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