umls-concept:C0000742 | skos:definition | CSP: replication defective strain of murine leukemia virus capable of transforming lymphoid cells and producing a rapidly progressing lymphoid leukemia after superinfection with Maloney, Friend or Rauscher murine leukemia virus.,MSH: A replication-defective strain of Murine leukemia virus (LEUKEMIA VIRUS, MURINE) capable of transforming lymphoid cells and producing a rapidly progressing lymphoid leukemia after superinfection with FRIEND MURINE LEUKEMIA VIRUS; MOLONEY MURINE LEUKEMIA VIRUS; or RAUSCHER VIRUS.,NCI: A retrovirus that is associated with leukemia and induces in vitro transformation of certain mouse cells. | lld:umls |