How Switching to E Cigarettes After Smoking Cessation Affects Lung Cancer Risk Switching to E Cigarettes Did not Prevent His Lung Cancer Death Young adult cancer survivors more likely than peers to use e cigarettes Growing the research evidence on e cigarettes by Research at CRUK Medium Use of e cigarettes after quitting smoking increases lung cancer risk Cancerworld Magazine E cigarettes can cause cancer even when they are nicotine free, scientists claim The Mirror