title: Contaminated humidifiers and the lung.
mesh_terms: D000389:Air Conditioning / Q000009:adverse effects*; D000542:Alveolitis, Extrinsic Allergic / Q000209:etiology* / Q000503:physiopathology; D006801:Humans; D008168:Lung / Q000503:physiopathology; D009784:Occupational Diseases / Q000209:etiology*; D012907:Smoking