. "a virus the can initiate various kinds of tumors in mice"@en-us . "101266479"@en-us . "polyoma"^^ . . . . . "0.25"^^ . . . "polyoma virus"@en-us . . "0.125"^^ . "01340522-n"^^ . "101340522"^^ . . . . "polyoma"@en-us . "100876938"@en-us .