Switching to vapes 'could save NHS more than half a billion a year', study says The Independent Vaping danger concerns with users reporting sickness and breathing issues Coventry Live E cigarettes more effective than patches, gum at helping people quit smoking, study finds MinnPost Smokers who use e cigs as for smoking cessation are more likely to end up dual users than to switch completely or stop smoking and vaping Stanton Glantz blog