目的探索严重急性呼吸系统综合征(SARS)在家庭内和医院内聚集性传播和产生“超级传播事件”的机制。

Objective Approach to the mechanism of producing cluster transmission of SARS in families and hospitals and the "super-spread events" (SSEs).

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目的：观察重症严重急性呼吸系统综合征(SARS)患者实施无创机械通气的过程中镇静剂对通气疗效的影响。

Objective: to observe the effects of sedation on the critical severe acute respiratory syndrome (SARS) patients undergoing noninvasive mechanical ventilation (NIMV) treatment.

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