A new study published in Nicotine & Tobacco Research found that those using e cigarettes alone were more than twice as likely to develop COPD than people who didn't use any tobacco products, Briser le mythe : vapotage, plus ou moins dangereux que la cigarette? Dangereux, point. Qubec sans tabac Cigarette lectronique vapoteuse et effets sur la sant Cancer Environnement Another Gross Reason to Put Down the E Cigarettes American Lung Association E cig vapor does not induce genetic mutations associated with cigarette smoke exposure ecancer