Objective: To explore the effect of invasive and sequential non-invasive mechanical ventilation in flail chest combined with pulmonary contusion.

目的：探讨有创与无创序贯性机械通气治疗连枷胸合并肺挫伤的效果。

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Objective: to observe the efficacy of sequential mechanical ventilation on neonatal respiratory distress syndrome (NRDS).

目的：观察序贯机械通气疗法治疗新生儿呼吸窘迫综合征(NRDS)的疗效。

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Objective to explore the methods and evaluate the efficacy of sequential mechanical ventilation of the invasive and noninvasive in COPD patients with exacerbated respiratory failure.

目的探讨有创与无创序贯机械通气在慢性阻塞性肺疾病(COPD)并急性呼吸衰竭患者救治中的方法与疗效。

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Objective to explore the methods and evaluate the efficacy of sequential mechanical ventilation of the invasive and noninvasive in COPD patients with exacerbated respiratory failure.

目的探讨有创与无创序贯机械通气在慢性阻塞性肺疾病(COPD)并急性呼吸衰竭患者救治中的方法与疗效。

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