Allergy to street trees.
D001986:Bronchial Spasm / Q000209:etiology; D002140:California; D006801:Humans; D011058:Pollen; D012130:Respiratory Hypersensitivity / Q000209:etiology* / Q000517:prevention & control; D006255:Rhinitis, Allergic, Seasonal / Q000209:etiology; D014197:Trees