| http://www.w3.org/ns/prov#value | - His data is used by ad agencies eager to reshape marketing campaigns, by state health officials to identify risk factors for cigarette use, and by lawmakers and other public officials to justify funds and other resources for anti-smoking efforts. ??We try to ask the question, What works and what doesn??t??? Dr. Trapido says. ??The more we know, the more efficient we can be about delivering our mes
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