title: Diurnal variation of respiratory function in patients with severe airways obstruction.
mesh_terms: D000328:Adult; D000368:Aged; D000402:Airway Obstruction / Q000503:physiopathology*; D001991:Bronchitis; D002245:Carbon Dioxide / Q000097:blood; D002940:Circadian Rhythm; D006801:Humans; D008297:Male; D008875:Middle Aged; D010100:Oxygen / Q000097:blood; D010313:Partial Pressure; D012119:Respiration; D013147:Spirometry; D014397:Tuberculosis, Pulmonary
chemical_list: D002245:Carbon Dioxide; D010100:Oxygen