1. Bolling, K., Grant, C., Hamlyn, B., et al. (2007). Infant feeding survey 2005. London: The Information Centre.
2. NHS IC. (2009). Statistics on NHS stop smoking services: England. April 2008–March 2009. London.
3. Hajek, P., Stead, L. F., West, R. et al. (2009). Relapse prevention interventions for smoking cessation. The Cochrane Database of Systematic Reviews. 1, CD003999.
4. BMA. (2004). Smoking and reproductive life: The impact of smoking on reproductive and child health. London: Board of Science and Education & Tobacco Control Resource Center.
5. DiClemente, C. C., Dolan-Mullen, P., & Windsor, R. A. (2000). The process of pregnancy smoking cessation: Implications for interventions. Tobacco Control, 9(Suppl 3), III16–III21.