Gbjective :To study the safety and success rate of operating tracheoscopy.

前言： 目的：研究气管镜操作术的成功率和安全性。

youdao

Gbjective :To study the safety and success rate of operating tracheoscopy.

前言： 目的：研究气管镜操作术的成功率和安全性。

youdao