Chronic obstructive pulmonary disease.  Steps for better breathing.
D000305:Adrenal Cortex Hormones / Q000627:therapeutic use; D001993:Bronchodilator Agents / Q000627:therapeutic use; D015438:Health Behavior; D006801:Humans; D010102:Oxygen Inhalation Therapy; D029424:Pulmonary Disease, Chronic Obstructive / Q000628:therapy*; D012907:Smoking / Q000009:adverse effects
D000305:Adrenal Cortex Hormones; D001993:Bronchodilator Agents