Bronchodilator drug administration.
D000336:Aerosols; D001993:Bronchodilator Agents / Q000008:administration & dosage*; D004305:Dose-Response Relationship, Drug; D006801:Humans; D008173:Lung Diseases, Obstructive / Q000188:drug therapy*
D000336:Aerosols; D001993:Bronchodilator Agents