title: Variability of bronchial reactivity to exercise and metacholine in bronchial asthma.
mesh_terms: D000336:Aerosols; D001249:Asthma / Q000503:physiopathology*; D001980:Bronchi / Q000187:drug effects* / Q000503:physiopathology; D003250:Constriction; D006801:Humans; D006967:Hypersensitivity; D007252:Influenza Vaccines / Q000627:therapeutic use; D008688:Methacholine Compounds; D005082:Physical Exertion; D011058:Pollen; D012621:Seasons; D012907:Smoking; D013147:Spirometry; D013268:Stimulation, Chemical; D013997:Time Factors; D014887:Weather
chemical_list: D000336:Aerosols; D007252:Influenza Vaccines; D008688:Methacholine Compounds