Results (
Thai) 1:
[Copy]Copied!
We show that indoor pollutant exposure, includingPM2.5 and NO2, is associated with increased respiratory symptomsand risk of COPD exacerbations in former smokers withmoderate to severe COPD
Being translated, please wait..
![](//wwwimg.ilovetranslation.com/pic/loading_3.gif?v=b9814dd30c1d7c59_8619)