Frontiers E cigarette use, psychological distress, and daily activity participation among adults in Riyadh NHS gives definitive answer on how many cigarettes one disposable vape is equivalent to A Self Administered Questionnaire to Measure Dependence on Cigarettes: The Cigarette Dependence Scale Neuropsychopharmacology Relations among cigarette dependence, e cigarette dependence, and key dependence criteria among dual users of combustible and e cigarettes.