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Kool DA, Matsui SM, Greenberg HB, Holmes IH.Kool DA, et al. Among authors: greenberg hb.J Virol. 1992 Nov;66(11):6836-9. doi: 10.1128/JVI.66.11.6836-6839.1992.J Virol. 1992.PMID: 1328691Free PMC article.