Methods: B type ultrasonography was used to examine 27 cases with gastrointestinal injury and perforation in an emergency.

方法：应用B型超声对27例胃肠损伤和消化道溃疡穿孔病例进行急诊检查。

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Methods: B type ultrasonography was used to examine 27 cases with gastrointestinal injury and perforation in an emergency.

方法：应用B型超声对27例胃肠损伤和消化道溃疡穿孔病例进行急诊检查。

youdao