Association of electronic cigarette use and risk of COPD: a systematic review and meta analysis npj Primary Care Respiratory Medicine E cigarette use associated with increased risk of developing COPD, chronic bronchitis, emphysema and asthma. Thoracic and Sleep Group Queensland Infographic: Dangers of E cigarettes & Toxicity UPMC HealthBeat Exclusive E cigarette Use Significantly Associated with COPD RT Older users of e cigarettes at greater risk of respiratory illness, study suggests CUNY Graduate School of Public Health & Health Policy Association of electronic cigarette use and risk of COPD: a systematic review and meta analysis npj Primary Care Respiratory Medicine