Gmel, Gerhard, Stéphanie Baggio, Meichun Mohler-Kuo, Jean-Bernard Daeppen, and Joseph Studer. 2016. “E-Cigarette Use in Young Swiss Men: Is Vaping an Effective Way of Reducing or Quitting Smoking?”. Swiss Medical Weekly 146 (0102):w14271. https://doi.org/10.4414/smw.2016.14271.