You leave vaping out of this! http://www.newscientist.com/article/dn25739-ecig-users-are-young-heavy-smokers-trying-to-quit.html http://www.newscientist.com/ar

You leave vaping out of this! http://www.newscientist.com/article/dn25739-ecig-users-are-young-heavy-smokers-trying-to-quit.html http://www.newscientist.com/article/dn25739-ecig-users-are-y...