title: ABC of asthma. Precipitating factors.
mesh_terms: D000328:Adult; D000818:Animals; D000829:Animals, Domestic; D000941:Antigens / Q000009:adverse effects; D001249:Asthma / Q000139:chemically induced / Q000209:etiology*; D001250:Asthma, Exercise-Induced / Q000209:etiology; D002648:Child; D005512:Food Hypersensitivity / Q000150:complications; D006801:Humans; D008925:Mites / Q000276:immunology; D009784:Occupational Diseases / Q000209:etiology; D011058:Pollen; D013315:Stress, Psychological / Q000150:complications
chemical_list: D000941:Antigens