E cigarettes around 95% less harmful than tobacco estimates landmark review GOV.UK Vaping may 'wake up' cancer cells and trigger wave of disease in a decade's timeVaping may 'wake up' cancer cells and trigger wave of disease in a decade The Independent Rapid rise in vaping in Britain has stalled UCL News UCL University College London Similar DNA changes found in cells of both smokers and e cigarette users UCL News UCL University College London Comparing the cancer potencies of emissions from vapourised nicotine products including e cigarettes with those of tobacco smoke Tobacco Control Use of e cigarettes after quitting smoking increases lung cancer risk Cancerworld Magazine