Study links chronic vaping to progressive lung damage Harvard Gazette The effect of e cigarettes on smoking cessation and cigarette smoking initiation: An evidence based rapid review and meta analysis More evidence that e cigs expanding nicotine addiction Stanton Glantz blog Scientific evidence grows for e cigarettes as quit smoking aids Fox News UMass study says e cigarettes with nicotine can help people quit smoking masslive.com Tobacco industry promoting 'false evidence' on e cigarettes: WHO