00000nam a2200000 a 4500 Begh, R. Bullen, C. Lindson, N. McRobbie, H. Hartmann-Boyce, J. Tabak Entzug Drogen Sucht Electronic cigarettes for smoking cessation (Review) 2021 1. W:\Digitale Publikationen\Stoffgeb_Süchte\StgTab\00491651_Hartmann-Boyce_et_al-2021-Electronic_cigarettes_for_smoking_cessation_(Review)_Cochrane_Database_of_Systematic_Reviews.pdf The Cochrane Collaboration 3 S.