title: Hypersensitivity pneumonitis.
mesh_terms: D000190:Actinomyces / Q000276:immunology; D000818:Animals; D000941:Antigens; D001717:Birds; D003937:Diagnosis, Differential; D004391:Dust; D005260:Female; D006801:Humans; D005779:Immunodiffusion; D008171:Lung Diseases / Q000175:diagnosis; D008297:Male; D009784:Occupational Diseases; D011014:Pneumonia / Q000175:diagnosis / Q000209:etiology* / Q000276:immunology / Q000473:pathology; D012130:Respiratory Hypersensitivity / Q000175:diagnosis / Q000209:etiology / Q000276:immunology / Q000473:pathology; D012882:Skin Tests
chemical_list: D000941:Antigens; D004391:Dust