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These numbers have nothing to do with Chesterfield cigarettes, but at a quick glance they appear to reflect the numbers of pharmacists or physicians in support of Chesterfield cigarettes.

"The problematic and the perplexing aspect of regulation, of course, is the individual versus the population level," says Geoffrey Fong, principal investigator at the International Tobacco Control Policy Evaluation Project at the University of Waterloo

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A study published Tuesday in the journal Pediatrics may provide some substantive evidence in that debate

With Rainmaker, that evolution comes fully into view

Nicotine is more nuanced than the mainstream conversation suggests