Vaping: the madness of the British? Sydney Health Law PHE publishes independent expert e cigarettes evidence review GOV.UK La sigaretta elettronica abbatte del 95% i danni del fumo: ecco il report che lo dimostra Most people use e cigarettes to help them quit smoking Office for National Statistics Position statement on e cigarettes by Public Health Nottinghamshire County E cigarette risk perceptions an American crime scene The Counterfactual