Awareness and determinants of electronic cigarette use among Finnish adolescents in 2013: a population-based study
Jaana Maarit Kinnunen, Hanna Ollila, Salma El-Tayeb El-Amin, Lasse Antero Pere, Pirjo Liisa Lindfors, Arja Hannele Rimpelä
Tobacco Control Dec 2015, 24 (e4) e264-e270; DOI: 10.1136/tobaccocontrol-2013-051512