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Morgan RA, Nussbaum O, Muenchau DD, Shu L, Couture L, Anderson WF.Morgan RA, et al. Among authors: muenchau dd.J Virol. 1993 Aug;67(8):4712-21. doi: 10.1128/JVI.67.8.4712-4721.1993.J Virol. 1993.PMID: 8331726Free PMC article.