gangrene oral cancer peripheral artery disease health effects of tobacco head and neck cancer nicotine poisoning smoking cessation passive smoking tobacco packaging warning messages list of additives in cigarettes smoker's melanosis smoking and pregnancy smokeless tobacco keratosis green tobacco sickness stomatitis nicotina youth smoking british doctors study tobacco harm reduction a frank statement epigenetic effects of smoking smoking and health: report of the advisory committee to the surgeon general of the united states smoker's face 1950 wynder and graham study tobacco and other drugs
Health_Health effects by subject