title: Relationship between cigarette smoking and high packed cell volume and haemoglobin levels.
mesh_terms: D005260:Female; D006400:Hematocrit; D006454:Hemoglobins; D006801:Humans; D008168:Lung / Q000503:physiopathology*; D008297:Male; D008875:Middle Aged; D012737:Sex Factors; D012907:Smoking; D013147:Spirometry
chemical_list: D006454:Hemoglobins