Chung S.W. ea, 1987
Sequences responsible for the altered erythropoietin responsivness in spleen focus-forming virus strain SFFVp-infected cells are licalized to a 678bp region at the 3' end of the envelope gene. Chung S.W. , Wolff L. , Ruscetti S. // J. Virol. , 1987 , vol. 61, p. 1661-1664.
