BibTex format
@article{Filippidis:2016:10.1136/tobaccocontrol-2015-052771,
author = {Filippidis, FT and Laverty, AA and Gerovasili, V and Vardavas, CI},
doi = {10.1136/tobaccocontrol-2015-052771},
journal = {Tobacco Control},
pages = {98--104},
title = {Two year trends and predictors of e-cigarette use in 27 European Union member states},
url = {http://dx.doi.org/10.1136/tobaccocontrol-2015-052771},
volume = {26},
year = {2016}
}