what are some chemicals in tobacco Cigarettes and Tobacco: What's Burning? what are the chemicals in
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JaNa Craig On Feb

With low tar cigarettes smokers do this in two main waysthey smoke the cigarettes more strongly by taking more or deeper puffs or they occlude the filter ventilation holes with fingers or lips to prevent or reduce smoke dilution

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95% CI 1.21.4) and respiratory mortality (RR = 1.5
