Experts urge smokers to switch to e cigarettes for substantial health gains Talking Retail Australian researchers have issued one of the strongest warnings yet about vaping, saying a major review of evidence suggests e cigarettes are likely to cause lung and oral cancer. The review found signs E Cigs 'Less Harmful' Than Conventional Cigarettes: Review A scoping review of studies on the health impact of electronic nicotine delivery systems Internal and Emergency Medicine Springer Nature Link