however , in juvenile chronic myeloid leukemia and , in rare cases of erythroleukemia , there is a major reversion to fetal erythropoiesis , with progressive increase in fetal hemoglobin levels and synthesis of red cells which contain not only fetal hemoglobin but have a true fetal pattern of protein synthesis affecting proteins other than hb f , namely hb a2 , carbonic anhydrase and the membrane antigens i and i .
C0014819
erythropoiesis
C0014792
red cells