Objective: to improve X ray diagnostic accuracy of radiolucent foreign body in respiratory tract in children.

目的：旨在提高小儿气道透x线异物的X线诊断水平。

youdao

Objective: to improve X ray diagnostic accuracy of radiolucent foreign body in respiratory tract in children.

目的：旨在提高小儿气道透x线异物的X线诊断水平。

youdao