Two-color immunohistochemistry demonstrated that both macrophages and fibroblast-like synoviocytes were positive for nuclear C/EBP beta .
two-color immunohistochemistry demonstrated that both macrophages and fibroblast-like synoviocytes were positive for nuclear c/ebp beta .
B-other_name I-other_name O O O B-cell_type O B-cell_type I-cell_type O O O O B-protein_molecule I-protein_molecule O