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Ward RL, Pax KA, Sherwood JR, Young EC, Schiff GM, Bernstein DI.Ward RL, et al. Among authors: schiff gm.J Med Virol. 1992 Mar;36(3):222-5. doi: 10.1002/jmv.1890360313.J Med Virol. 1992.PMID: 1314287