House dust, mites, and insects.
D000941:Antigens / Q000032:analysis*; D004391:Dust; D006801:Humans; D007313:Insecta / Q000276:immunology*; D008925:Mites / Q000276:immunology*; D012130:Respiratory Hypersensitivity / Q000276:immunology*; D012882:Skin Tests
D000941:Antigens; D004391:Dust