the interrelationships between all the parameters we have studied have been examined and there is little correlation between erythroid colony formation in vitro , the percentage erythroblasts in the bone marrow , erythroid output measured by ferrokinetics and the peripheral blood reticulocyte count , all of which appear to measure different aspects of erythropoiesis .
C0014762
erythroblasts
C0005953
bone marrow