title: Understanding asthma. Part one.
mesh_terms: D000485:Allergens; D001249:Asthma / Q000175:diagnosis / Q000209:etiology*; D006801:Humans; D011369:Professional-Patient Relations; D012130:Respiratory Hypersensitivity / Q000175:diagnosis; D012882:Skin Tests
chemical_list: D000485:Allergens