Tashkin, D P Acute and chronic effects of marijuana smoking compared with tobacco smoking on blood carboxyhemoglobin levels. [electronic resource] - Journal of psychoactive drugs - 27-31 p. digital Publication Type: Comparative Study; Journal Article ISSN: 0279-1072 Standard No.: 10.1080/02791072.1988.10524368 doi Subjects--Topical Terms: AdultCarboxyhemoglobin--metabolismHumansMarijuana Smoking--bloodSmoking--bloodTime Factors