Global youth vaping and respiratory health: epidemiology, interventions, and policies npj Primary Care Respiratory Medicine PET imaging shows greater lung inflammation in e cigarette users than cigarette smokers The Royal College of Physicians (RCP) concluded in its report, E cigarettes and harm reduction: An evidence review, that these devices play a crucial role in lowering health inequalities and deaths linked to Vaping Devices (Electronic Cigarettes) DrugFacts National Institute on Drug Abuse (NIDA) E Cigarettes: Good Idea? Bad Idea? BU Today Boston University