29 asthma patients with forced expiratory volume in 1 s ( FEV1 ) < 70% predicted were studied .
29 asthma patients with forced expiratory volume in 1 s ( fev1 ) < 70% predicted were studied .
O B-multi_cell B-multi_cell O B-other_name I-other_name I-other_name O O O O B-other_name O O O O O O O