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Kohyama T, Liu XD, Wen FQ, Kim HJ, Takizawa H, Rennard SI.Kohyama T, et al. Among authors: wen fq.Eur Respir J. 2002 Apr;19(4):684-9. doi: 10.1183/09031936.02.01272001.Eur Respir J. 2002.PMID: 11998998Free article.