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Ryu JH, Daniels CE, Hartman TE, Yi ES.Ryu JH, et al. Among authors: daniels ce.Mayo Clin Proc. 2007 Aug;82(8):976-86. doi: 10.4065/82.8.976.Mayo Clin Proc. 2007.PMID: 17673067Review.
Daniels CE, Yi ES, Ryu JH.Daniels CE, et al.Eur Respir J. 2008 Jul;32(1):170-4. doi: 10.1183/09031936.00176307. Epub 2008 Feb 6.Eur Respir J. 2008.PMID: 18256070Free article.