The quality of gastric canal was related with the indwelling time and stomach environment.
胃管颜色变黑与留置时间成正相关，与胃内环境关系密切。
Results the new fixation method lengthened the indwelling time of scalp intravenous needle.
结果加用弹力网套固定头皮静脉留置针组的保留时间延长。
Objective To summarize the clinical application in the indwelling of femoral venous puncture.
目的：总结股静脉穿刺置管的临床应用情况。
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