1. Great Britain Health Act 2006 (ch. 28) 2006 London HMSO 1 9 http://www.opsi.gov.uk/acts/acts2006/pdf/ukpga_20060028_en.pdf (25 February 2008, date last accessed)
2. Legislation on smoking in enclosed public places in Scotland: how will we evaluate the impact?;Haw;J Public Health,2006
3. New York State Department of Health The Health and Economic Impact of New York's Clean Indoor Air Act. New York, United States 2006 http://www.health.state.ny.us/prevention/tobacco_control/docs/ciaa_impact_report.pdf (25 February 2008, date last accessed)
4. Office of Tobacco Control Smoke-free Workplaces in Ireland: A One Year Review 2005 Clane, Co Kildare, Ireland http://www.otc.ie/Uploads/1_Year_Report_FA.pdf (25 February 2008, date last accessed)
5. Lund M Smoke-free Bars and Restaurants in Norway. SIRUS, National Institute for Alcohol and Drug Research 2005 Oslo, Norway http://www.globalink.org/documents/2005smokefreebarsandrestaurantsinNorway.pdf (25 February 2008, date last accessed)