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Hartley DM, Rinderknecht JL, Nipp TL, Clarke NP, Snowder GD; National Center for Foreign Animal and Zoonotic Disease Defense Advisory Group on Rift Valley Fever.Hartley DM, et al.Emerg Infect Dis. 2011 Aug;17(8):e1. doi: 10.3201/eid1708.101088.Emerg Infect Dis. 2011.PMID: 21801607Free PMC article.Review.