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Liu N, Ostrow KM, Loeb DD.Liu N, et al. Among authors: loeb dd.Virology. 2002 Apr 10;295(2):348-59. doi: 10.1006/viro.2002.1425.Virology. 2002.PMID: 12033794Free article.
Liu N, Ji L, Maguire ML, Loeb DD.Liu N, et al. Among authors: loeb dd.J Virol. 2004 Jan;78(2):642-9. doi: 10.1128/jvi.78.2.642-649.2004.J Virol. 2004.PMID: 14694095Free PMC article.