E cigarettes may be helping thousands a year to quit smoking, but Stop Smoking Services are still the best option E cigarettes can cause cancer even when they are nicotine free, scientists claim The Mirror Clinical Oncology Society of Australia concludes E cigarettes are likely to cause lung cancer and oral cancer Stanton Glantz blog Disposable E Cigarettes More Toxic Than Traditional Cigarettes UC Davis Broad evidence implicates e cigarettes as a cause of cancer Stanton Glantz blog