Can electronic cigarettes help people stop smoking, and do they have any unwanted effects when used for this purpose?

This Cochrane Review is based on results from randomised controlled trials, examining the effectiveness, tolerability, and safety of using electronic cigarettes (ECs) to help people who smoke tobacco achieve long‐term smoking abstinence.

https://www.cochranelibrary.com/cdsr/doi/10.1002/14651858.CD010216.pub6/full