Smoking related lung disease to cost the NHS 2.3billion by 2030! Vapour.com Electronic Cigarettes, E Cigs, and E Liquids for Vaping Vapour Electronic cigarette use and its association with asthma, chronic obstructive pulmonary disease (COPD) and asthma COPD overlap syndrome among never cigarette smokers Links to E Cigarette Resources American Lung Association The role of cigarette smoke induced pulmonary vascular endothelial cell apoptosis in COPD Respiratory Research Springer Nature Link