"Ongoing nervousness" about the use of e-cigarettes in stop-smoking services can be a "significant" barrier to people finding support, research revealed during "Stoptober" shows. New research by the University of Exeter and University of Melbourne, funded by Cancer Research UK, suggests stop smoking services which are e-cigarette friendly should advertise this more openly, and says greater use of e-cigarettes has the potential to make considerable impact in helping people give up smoking.