Effect of air pollution on prevalence of chronic bronchitis symptoms-a cross-sectional analysis of 5 cohort studies
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2015 ◽
Vol 123
(6)
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pp. 597-605
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2016 ◽
Vol 124
(9)
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pp. 1361-1368
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1983 ◽
Vol 38
(6)
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pp. 325-330
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2021 ◽
Vol 8
(1)
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pp. e000684corr1
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