Before and after treatment , the patients underwent fiberoptic bronchoscopy with endobronchial biopsy and sampling of venous blood for measurements of GR mRNA levels .
before and after treatment , the patients underwent fiberoptic bronchoscopy with endobronchial biopsy and sampling of venous blood for measurements of gr mrna levels .
O O O O O O O O B-other_name I-other_name O B-other_name I-other_name O O O B-tissue I-tissue O O O B-RNA_family_or_group I-RNA_family_or_group O O