Vaping and COPD Are E Cigarettes a Safe Alternative to Smoking? Using Airway Cell Cultures to Assess Early Indicators of COPD Progression Inquiries Journal Rakesh Gupta Are E Cigarettes a Safe Alternative to Smoking? Using Airway Cell Cultures to Assess Early Indicators of COPD Progression Inquiries Journal The electronic cigarette epidemic Chronic Disease Vaping linked with long term risk of respiratory disease in new study