4 noviembre 2014
Over half the smokers using the Liverpool Stop Smoking Service have tried electronic cigarettes (51.3 per cent). Of these, nearly half had used them within the past month and are considered current users (45.5 per cent).
http://feeds.sciencedaily.com/~r/sciencedaily/~3/yf1H-WFLxns/141103191945.htm
