title: Polycythaemia in lung cancer.
mesh_terms: D002283:Carcinoma, Bronchogenic / Q000150:complications*; D004920:Erythropoiesis; D006801:Humans; D008175:Lung Neoplasms / Q000150:complications*; D008297:Male; D008875:Middle Aged; D011086:Polycythemia / Q000209:etiology*