Health effects of electronic cigarettes: A review British Columbia Medical Journal Exclusive e cigarette use raises COPD risk but not type 2 diabetes or heart failure risk 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, Elevated risk of developing COPD with e cigarette use: Study Practice Nursing How safe are e cigarettes for patients with COPD? A systematic review Practice Nursing