This may be due to the difference between the self-reported state and participants calculated state with minimal smoking exposure
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1 cause of disability, disease, and death
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(8) Mason Locke Weems, in his biography of Benjamin Franklin, said bluntly: O you time-wasting, brain-starving young men, who can never be at ease unless you have a cigar or a plug of tobacco in your mouths, go on with your puffing and champing go on with your filthy smoking, and your still more filthy spitting, keeping the cleanly house-wives in constant terror for their nicely waxed floors, and their shining carpets go on, I say