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Miller N, Hutt-Fletcher LM.Miller N, et al.J Virol. 1992 Jun;66(6):3409-14. doi: 10.1128/JVI.66.6.3409-3414.1992.J Virol. 1992.PMID: 1316456Free PMC article.
Miller N, Hutt-Fletcher LM.Miller N, et al.J Virol. 1988 Jul;62(7):2366-72. doi: 10.1128/JVI.62.7.2366-2372.1988.J Virol. 1988.PMID: 2836619Free PMC article.
Li Q, Turk SM, Hutt-Fletcher LM.Li Q, et al.J Virol. 1995 Jul;69(7):3987-94. doi: 10.1128/JVI.69.7.3987-3994.1995.J Virol. 1995.PMID: 7539502Free PMC article.