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ine leukemia virus associated with development of spontaneous
lymphomas. Proc. Nat. Acad. Sci. USA, 1977, 74, N 2, 789-792.
Hartley J.W., Wolford N.K., Old L.J., Rowe W.P. A new class of mur-
ine leukemia virus associated with development of spontaneous
lymphomas. Proc. Nat. Acad. Sci. USA, 1977, 74, N 2, 789-792.