目的探讨胸腔感染与一次性水封瓶更换时间长短的临床意义。
Objective To investigate the clinical significance between thoracic infections and the replacing time of one-off water seal bottle.
目的研究胸腔闭式引流一次性水封瓶更换时间与胸腔感染是否相关，以确定更换一次性水封瓶的时间。
Objective To investigate the relation between the replacing time of water-sealed bottle and the thoracic cavity infections, and determine the optional time for replacement.
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