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Kwan SP, Hagemann TL, Radtke BE, Blaese RM, Rosen FS.Kwan SP, et al. Among authors: hagemann tl.Proc Natl Acad Sci U S A. 1995 May 9;92(10):4706-10. doi: 10.1073/pnas.92.10.4706.Proc Natl Acad Sci U S A. 1995.PMID: 7753869Free PMC article.