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Ito K, Lim S, Caramori G, Cosio B, Chung KF, Adcock IM, Barnes PJ.Ito K, et al. Among authors: chung kf.Proc Natl Acad Sci U S A. 2002 Jun 25;99(13):8921-6. doi: 10.1073/pnas.132556899. Epub 2002 Jun 17.Proc Natl Acad Sci U S A. 2002.PMID: 12070353Free PMC article.Clinical Trial.