the thesis appears supported by the fact that erythropoietin affects the committed red cell precursors , that 98 % of marrow mitoses have been shown to occur in cells clearly recognizable as red or white cell precursors ( while the pluripotential stem cells by definition are not so recognizable ) , and that it has been shown ( by the spleen nodule assay ) that the pluripotential stem cell compartment in the marrow can not be readily expanded .
C0026255
mitoses
C0007634
cells