On development of bronchial beta2-receptor tolerance.
D000318:Adrenergic beta-Agonists / Q000008:administration & dosage* / Q000627:therapeutic use; D000336:Aerosols; D001249:Asthma / Q000188:drug therapy*; D001980:Bronchi / Q000187:drug effects; D002986:Clinical Trials as Topic; D004341:Drug Evaluation; D004361:Drug Tolerance; D006801:Humans; D011941:Receptors, Adrenergic / Q000187:drug effects*; D011943:Receptors, Adrenergic, beta / Q000187:drug effects*; D013997:Time Factors
D000318:Adrenergic beta-Agonists; D000336:Aerosols; D011941:Receptors, Adrenergic; D011943:Receptors, Adrenergic, beta