Relations among cigarette dependence, e cigarette dependence, and key dependence criteria among dual users of combustible and e cigarettes. Effect of electronic cigarettes on the change of Fagerstrom Test for Nicotine Dependence scores during 1 year follow up Development and initial validation of a new self report measure to assess perceived dependence on tobacco and nicotine products Scientific Reports A Self Administered Questionnaire to Measure Dependence on Cigarettes: The Cigarette Dependence Scale Neuropsychopharmacology NHS gives definitive answer on how many cigarettes one disposable vape is equivalent to Frontiers E cigarette use, psychological distress, and daily activity participation among adults in Riyadh