Activation of Stat 5b in erythroid progenitors correlates with the ability of ErbB to induce sustained cell proliferation .
activation of stat 5b in erythroid progenitors correlates with the ability of erbb to induce sustained cell proliferation .
O O B-protein_molecule I-protein_molecule O B-cell_type I-cell_type O O O O O B-protein_molecule O O O B-other_name I-other_name O