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Martínez-Sobrido L, Zúñiga EI, Rosario D, García-Sastre A, de la Torre JC.Martínez-Sobrido L, et al.J Virol. 2006 Sep;80(18):9192-9. doi: 10.1128/JVI.00555-06.J Virol. 2006.PMID: 16940530Free PMC article.