The continued requirement for inducer for the development of macrophage and granulocyte colonies.
D000818:Animals; D001853:Bone Marrow / Q000254:growth & development*; D001854:Bone Marrow Cells; D002454:Cell Differentiation / Q000187:drug effects*; D002999:Clone Cells; D003470:Culture Media; D046508:Culture Techniques; D004921:Erythropoietin / Q000494:pharmacology; D006133:Growth Substances / Q000494:pharmacology*; D006651:Histocytochemistry; D007962:Leukocytes / Q000254:growth & development*; D008264:Macrophages / Q000254:growth & development*; D051381:Rats
D003470:Culture Media; D006133:Growth Substances; D004921:Erythropoietin