By contrast , the monocyte-macrophage colony stimulating factor ( M-CSF ) receptor was largely absent at this stage and in the CD34+Thy-1-CD45RA- subsets .
by contrast , the monocyte-macrophage colony stimulating factor ( m-csf ) receptor was largely absent at this stage and in the cd34+thy-1-cd45ra- subsets .
O O O O B-protein_family_or_group I-protein_family_or_group I-protein_family_or_group I-protein_family_or_group I-protein_family_or_group I-protein_family_or_group I-protein_family_or_group I-protein_family_or_group O O O O O O O O O B-cell_line I-cell_line O