UK scientists are calling new research on the effects of vaping 'irresponsible' New paper by Hajek group presents misleading incomplete results about dual use when using e cigs as cessation aid Stanton Glantz blog PDF) Are 'dual users' who smoke and use e cigarettes interested in using varenicline to stop smoking altogether, and can they benefit from it? A cohort study of UK vapers WHO Vape Report Misleading Say UK Health Experts Ecigclick Electronic cigarettes: A safe substitute? New Scientist