Galvin, K T Comparison of three methods for measuring cigarette smoking in patients with vascular disease. [electronic resource] - Cardiovascular surgery (London, England) Feb 1994 - 48-51 p. digital Publication Type: Comparative Study; Journal Article ISSN: 0967-2109 Subjects--Topical Terms: AgedCarbon Dioxide--bloodCarboxyhemoglobin--analysisFemaleHumansMaleMethodsMiddle AgedRisk FactorsSensitivity and SpecificitySmokingThiocyanates--bloodVascular Diseases