甘露聚糖肽针能不能治好白癜风疾病 http://m.39.net/baidianfeng/a_4328645.html

Title

AssociationbetweenaRapidReductioninAirParticlePollutionandImprovedLungFunctioninAdults

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Rationale/原理

Lungfunctionimpairmentisreportedlyassociatedwithelevatedexposuretoambientfineparticles(PM2.5).However,whetherimprovementofairqualitypreventsrespiratorydiseasesisunclear.

据报道，肺功能的损伤与暴露于周围细颗粒物(PM2.5)的增加有关。然而，改善空气质量是否能预防呼吸道疾病尚不清楚。

Objective/目的

Toexaminewhetherthepolicy-drivenreductioninPM2.5concentrationafterwasassociatedwithimprovedlungfunctionamongChineseadults.

测试年后政策驱动的PM2.5浓度的降低是否与中国成年人肺功能改善相关。

Methods/方法

We