Bronchodilator drugs; a comparison in emphysematous patients.
D001980:Bronchi / Q000187:drug effects*; D001993:Bronchodilator Agents; D004646:Emphysema; D006801:Humans; D011656:Pulmonary Emphysema / Q000628:therapy*
D001993:Bronchodilator Agents
BRONCHI/effect of drugs on; EMPHYSEMA, PULMONARY/therapy