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Colony-stimulating activity (CSA) was measured by the production of granulocyte-macrophage colony-forming units (GM-CFU) from normal donor bone marrow in the plasma of 29 patients with multiple(More)
Inbred rats were given sub-lethal doses of irradiation so that they were unable to make antibodies unless they were reconstituted with syngeneic lymphoid cells. The ability of the reconstituted rats(More)