radioiodinated or biologically tritiated recombinant human erythropoietin was used to characterize receptors for this hormone on the surface of friend erythroleukemic cells ( 745a and tsa8 ) and cells from mouse erythropoietic tissues ( liver from fetus and spleen from animals made anemic by injection of friend virus or phenylhydrazine ) .
C0699040
surface of
C0007634
cells