Brommer, E.J.Ph.

virus spleen leukaemia leukaemic rauscher colony balb /c mice cancer leukemia disease bone marrow marrow leukaemic spleen cells blood animal friend spleen cells number mouse study erythroblastosi rauscher virus leukaemic cells infection experiment effect haematopoietic nature liver proliferation murine rauscher disease differentiation growth rauscher leukaemia virus suspension cancer inst friend virus transformation target cells research control preparation count result organ tumour change weight factor injection spleen colony assay spleen weight presence irradiation target assay group radiation evidence rabbit lymphatic erythroid blast survival tissue lymphatic leukaemia friend leukemia virus c 57bl mice lymphoma conclusion splenic erythropoietin rabbit serum rauscher leukaemia rauscher erythroblastosis observation bone marrow cells chromosome agent