Carr, Alan and Ebbert, Jon (2012) Interventions for tobacco cessation in the dental setting. Cochrane Database of Systematic Reviews, (6), Art. No.: CD005084. DOI: 10.1002/14651858.CD005084.pub3.

Ebbert, Jon and Elrashidi, Muhamad Y and Stead, Lindsay F (2015) Interventions for smokeless tobacco use cessation. Cochrane Database of Systematic Reviews, (10), Art. No.: CD004306. 10.1002/14651858.CD004306.pub5.