copd chewing tobacco can smokeless cause Smokeless Tobacco Risks of Tobacco - UF
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Archived from the original on 28 February 2013

Sugar is generally viewed as nothing more than empty calories, but researchers from the University of California, San Francisco said there is mounting scientific evidence showing that fructose can trigger processes that lead to liver toxicity and a host of other chronic diseases

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CDC Grand Rounds: global tobacco control
10.1093/oxfordjournals.aje.a113723 191
