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Here's an overview of the toxins: Cigarettes had the highest number of toxins and carcinogens (including NNK and NNN), followed by moist snuff and chewing tobacco

All participants were categorised as never, former or current smoking according to their smoking status, and as no (0), light (0.119.9), intermediate (2039.9), or heavy (40) smoking according to the pack-years of smoking

Joy February 2010 In 2002 I graduated in the top five percent of my class, was accepted into several colleges and I was on my way to be the first person in my family to graduate from college

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