In chronic bronchitis , few cells were GCRbeta -positive and their numbers did not differ significantly from normal control subjects .
in chronic bronchitis , few cells were gcrbeta -positive and their numbers did not differ significantly from normal control subjects .
O B-other_name I-other_name O O O O B-protein_molecule O O O O O O O O O B-multi_cell I-multi_cell I-multi_cell O