BibTex format
@article{Nikitara:2020:eurpub/ckaa081,
author = {Nikitara, K and Girvalaki, C and Kyriakos, CN and Driezen, P and Filippidis, FT and Kahnert, S and Hitchman, SC and Mons, U and Fernández, E and Trofor, AC and Przewoniak, K and Demjén, T and Katsaounou, PA and Zatoski, W and Fong, GT and Vardavas, CI and EUREST-PLUS, Consortium},
doi = {eurpub/ckaa081},
journal = {European Journal of Public Health},
pages = {iii62--iii67},
title = {Changes in electronic cigarette use and label awareness among smokers before and after the European Tobacco Products Directive implementation in six European countries: findings from the EUREST-PLUS ITC Europe Surveys.},
url = {http://dx.doi.org/10.1093/eurpub/ckaa081},
volume = {30},
year = {2020}
}