Hypersensitivity pneumonitis: "pandora's box".
D000192:Actinomycetales; D000389:Air Conditioning; D000391:Air Microbiology; D000906:Antibodies / Q000032:analysis; D004781:Environmental Exposure; D006801:Humans; D006968:Hypersensitivity, Delayed; D011014:Pneumonia / Q000209:etiology* / Q000276:immunology; D012130:Respiratory Hypersensitivity / Q000209:etiology* / Q000276:immunology; D005719:gamma-Globulins / Q000032:analysis
D000906:Antibodies; D005719:gamma-Globulins