The current study investigates the hypothesis that CD40 expressed on lung fibroblasts is an activation structure and mechanism for interaction with hemopoietic cells .
the current study investigates the hypothesis that cd40 expressed on lung fibroblasts is an activation structure and mechanism for interaction with hemopoietic cells .
O O O O O O O B-protein_molecule O O B-cell_type I-cell_type O O O O O O O O O B-cell_type I-cell_type O