Macrophages and granulocytes , which are developed from a common progenitor cell , are the cellular components of the specific and non-specific immunoreaction .
macrophages and granulocytes , which are developed from a common progenitor cell , are the cellular components of the specific and non-specific immunoreaction .
B-cell_type O B-cell_type O O O O O O O O O O O O O O O O O O O O O