Electronic nicotine delivery systems

From the authors:

We thank K. Nackaerts and L. Joossens for correctly pointing out an error in our editorial “Electronic nicotine delivery systems (ENDS): the beginning of the end or the end of the beginning?” [1]. Where the Editorial states that “there will be a maximum nicotine volume for e-cigarettes (2 mL for single use and 10 mL for refillable cartridges), and a maximum nicotine concentration for refillable cartridges, tanks and containers of nicotine liquids (20 mg·mL⁻¹)”, it should read “according to Article 20 3 (a) and 20 3 (b) of Directive 2014/40/EU [2], ‘Member States shall ensure that: (a) nicotine-containing liquid is only placed on the market in dedicated refill containers not exceeding a volume of 10 ml, in disposable electronic cigarettes or in single use cartridges and that the cartridges or tanks do not exceed a volume of 2 ml; (b) the nicotine-containing liquid does not contain nicotine in excess of 20 mg/ml’.” This error has also been addressed as an Author Correction in this issue of the European Respiratory Journal.