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Time: 2024-03-28T14:33:22Z
URL: http://scholar.google.com/scholar_lookup?title=A+neutralizable+epitope+common+to+the+envelope+glycoproteins+of+ecotropic%2C+polytropic%2C+xenotropic%2C+and+amphotropic+murine+leukemia+viruses&year=1990&author=Evans&journal=J.+Virol.&volume=64&pages=6176-6183&pmid=1700832