Constitutive activations of PKB/Akt , STAT5a , and STAT5b were noted in these EPO -independent cells .
constitutive activations of pkb/akt , stat5a , and stat5b were noted in these epo -independent cells .
O O O B-protein_molecule O B-protein_molecule O O B-protein_molecule O O O O B-protein_family_or_group O O O