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Chege GK, Shephard EG, Meyers A, van Harmelen J, Williamson C, Lynch A, Gray CM, Rybicki EP, Williamson AL.Chege GK, et al.J Gen Virol. 2008 Sep;89(Pt 9):2214-2227. doi: 10.1099/vir.0.83501-0.J Gen Virol. 2008.PMID: 18753231