Cite
APA Citation
El Dib, R., Suzumura, E. A., Akl, E. A., Gomaa, H., Agarwal, A., Chang, Y., Prasad, M., Ashoorion, V., Heels-Ansdell, D., Maziak, W., & Guyatt, G. (2017). electronic nicotine delivery systems and/or electronic non-nicotine delivery systems for tobacco smoking cessation or reduction: a systematic review and meta-analysis. BMJ open, 7(2), . http://access.bl.uk/ark:/81055/vdc_100135175369.0x000009