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Marx PA, Li Y, Lerche NW, Sutjipto S, Gettie A, Yee JA, Brotman BH, Prince AM, Hanson A, Webster RG, et al.Marx PA, et al.J Virol. 1991 Aug;65(8):4480-5. doi: 10.1128/JVI.65.8.4480-4485.1991.J Virol. 1991.PMID: 1840620Free PMC article.