And with the growth has come a rapid rise in e-cigarette advertising, which jumped more than 1,200 percent between 2011 and 2013
Description A close-up scene featuring neatly rolled cigarettes nestled among coarse tobacco leaves, inviting a moment of chill and reflection
FDA Center for Tobacco Products
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Studies that were not casecontrol studies (such as systematic evaluations, meta-analyses, conference abstracts, letters, cellular or animal studies, reviews, commentaries, and dissertations), and those that did not focus on the association between UC and smoking status, were excluded from this meta-analysis, as were studies with incomplete data, those that were not available as full text documents, and duplicate studies