In contrast, the effects of the size-specific particulate matter on asthma are less robust: the moving average lags of PM c , and PM 2.5 were still significantly associated with the ALRI outpatient visits, but the effects of lag0 to lag5 of PM c and PM 2.5 and different lags of PM 10 were non-significant or at borderline significant.
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Size-Specific Particulate Matter Associated With Acute Lower Respiratory Infection Outpatient Visits in Children: A Counterfactual Analysis in Guangzhou, China.
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