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Winter season temperature drops and sulfur dioxide levels affect on exacerbation of refractory asthma in South Korea: a time-trend controlled case-crossover study using soonchunhyang asthma cohort data.
Kim S, Kim Y, Lee MR, Kim J, Jung A, Park JS, Jang AS, Park SW, Uh ST, Choi JS, Kim YH, Buckley T, Park CS. Kim S, et al. Among authors: kim yh, kim j, kim y. J Asthma. 2012 Sep;49(7):679-87. doi: 10.3109/02770903.2012.702839. Epub 2012 Jul 20. J Asthma. 2012. PMID: 22812434
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