title: Polycythemia and chronic lung disease.
mesh_terms: D000368:Aged; D000531:Altitude; D002908:Chronic Disease; D006400:Hematocrit; D006801:Humans; D000860:Hypoxia / Q000209:etiology / Q000503:physiopathology; D008171:Lung Diseases / Q000097:blood / Q000150:complications* / Q000175:diagnosis / Q000503:physiopathology; D008297:Male; D010100:Oxygen / Q000097:blood; D011086:Polycythemia / Q000150:complications / Q000175:diagnosis / Q000209:etiology* / Q000503:physiopathology
chemical_list: D010100:Oxygen