While tobacco smoking rates have fallen across OECD countries, vaping is becoming increasingly common, especially among adolescents. On average, one in five 15 year olds report using e cigarettes in the past month, with girls Vaping among Norwegians who smoke or formerly smoked: reasons, patterns of use, and smoking cessation activity Harm Reduction Journal Springer Nature Link Can You Take Vapes Abroad? Global Vape Laws OK Vape Use of nicotine products among youth in the Nordic and Baltic countries