Objective to study the incidence, risk factors, prophylaxis and treatment for bronchopulmonary dysplasia (BPD) in premature.

目的分析早产儿支气管肺发育不良(BPD)的发生率和危险因素，探讨防治BPD的措施。

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Premature infants with bronchopulmonary dysplasia (BPD) is one of the most serious complications of newborn, it affected the quality of life in preterm children seriously.

支气管发育不良(BPD)是早产儿最严重的并发症之一，严重影响了早产儿的生存质量。

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Objective The aim of this study was to determine the therapeutic effect of pulmonary surfactant (PS) on the development of bronchopulmonary dysplasia (BPD) in premature infants.

目的探讨肺表面活性物质（PS）对支气管肺发育不良（BPD）的预防和治疗意义。

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