TY - JOUR T1 - Respiratory irritants in e-cigarette refill liquids across nine European countries: a threat to respiratory health? JF - European Respiratory Journal JO - Eur Respir J DO - 10.1183/13993003.01698-2017 VL - 50 IS - 6 SP - 1701698 AU - Constantine Vardavas AU - Charis Girvalaki AU - Alexander Vardavas AU - Sophia Papadakis AU - Manolis Tzatzarakis AU - Panagiotis Behrakis AU - Aristidis Tsatsakis Y1 - 2017/12/01 UR - http://erj.ersjournals.com/content/50/6/1701698.abstract N2 - The rapid expansion of the e-cigarette market across European countries has raised a number of concerns within the scientific community [1, 2]. The most recent data from across the European Union revealed a substantial increase in e-cigarette experimentation, with 15% of European citizens reporting having tried e-cigarettes in 2017, representing a 7.0% increase since 2012 [3]. Annual e-cigarette sales in Europe have reached EUR 1.33 billion, and are projected to reach over EUR 10 billion by 2020 [4].Respiratory irritants within e-cigarette refill liquids are a cause for concern for respiratory health http://ow.ly/454g30gK09m ER -