Objective With the rapid increase in use of electronic nicotine delivery systems (ENDS), such as electronic cigarettes (e-cigarettes), users and non-users are exposed to the aerosol and product constituents. This is a review of published data on the human health effects of exposure to e-cigarettes and their components.
Methods Literature searches were conducted through September 2013 using multiple electronic databases.
Results Forty-four articles are included in this analysis. E-cigarette aerosols may contain propylene glycol,...