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Poll: Americans Think Smoking Pot Is Less Harmful Than Cigarettes Tobacco vs. Weed: Similarities and Differences More Americans than ever believe marijuana smoke is safer than cigarette smoke, but they're wrong U of A researchers identify more than 100 toxic chemicals in cannabis smoke Folio Smoking pot vs. tobacco: What science says about lighting up FOX 9 Minneapolis St. Paul Study: Comparing Marijuana and Tobacco Use CannaMD Marijuana Doctors & Cards

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