title: Hypersensitivity lung disease caused by contamination of an air-conditioning system.
mesh_terms: D000389:Air Conditioning; D000397:Air Pollution; D000485:Allergens; D004391:Dust; D006801:Humans; D008297:Male; D008875:Middle Aged; D011241:Prednisone / Q000627:therapeutic use; D012130:Respiratory Hypersensitivity / Q000175:diagnosis* / Q000188:drug therapy
chemical_list: D000485:Allergens; D004391:Dust; D011241:Prednisone