E cigarette laws just a smokescreen? Teens easily work around bans by buying e cigarettes online National Poll on Children's Health Ontario's forthcoming vaping rules will be a roadblock to proven harm reduction CBC News Smokers looking to quit should only use vapes as last resort, new guidelines say The Globe and Mail Association between home smoking and e cigarette use restrictions and concurrent use behaviors among dual users of cigarettes and e cigarettes Alliance aims to break 'perception that e cigarettes are harmless' CBC News New E Cigarette Laws Could Drive Some Users to Smoke More Cigarettes Duke Health