Inhaled v. oral bronchodilators.
Aggarwal
A N
AN
D000280:Administration, Inhalation; D000284:Administration, Oral; D001249:Asthma / Q000188:drug therapy*; D001993:Bronchodilator Agents / Q000008:administration & dosage*; D006801:Humans
D001993:Bronchodilator Agents