Electronic nicotine delivery systems and/or electronic non-nicotine delivery systems for tobacco smoking cessation or reduction: a systematic review and meta-analysis
Regina El Dib, Erica A Suzumura, Elie A Akl, Huda Gomaa, Arnav Agarwal, Yaping Chang, Manya Prasad, Vahid Ashoorion, Diane Heels-Ansdell, Wasim Maziak, Gordon Guyatt
BMJ Open Feb 2017, 7 (2) e012680; DOI: 10.1136/bmjopen-2016-012680