Second, a disturbing increase in later-onset, less frequent smoking by 18- to 25-year-olds could portend a growing cohort of new smokers who may be overlooked by traditional prevention programs for teens and by traditional cessation programs developed for older smokers
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Effective density and mass The effective density of an aerosol particle relates its mobility diameter and mass, properties which govern the particles trajectory (through diffusion and impaction), and quantity of non-gaseous chemicals delivered during inhalation
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Why Does Cigarette Smoke Smell Linger on Clothes Cigarette smoke contains over 7,000 chemicals, including tar and nicotine, whose microscopic particles cling tightly to fabric fibers
International variation in the prevalence of COPD (the BOLD Study): a population-based prevalence study