By study and field application of it, a certain effect has been gained.
经研究和现场应用，取得一定效果。
Objective to study the percutaneous tracheotomy patients in the ICU application effect.
目的探讨经皮气管切开术在ICU患者中的应用效果。
Objective to study the percutaneous tracheotomy patients in the ICU application effect.
目的探讨经皮气管切开术在ICU患者中的应用效果。
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