1. 2. European Observatory on Health Systems and Policies. Policy brief. Day surgery: making it happen, 2007.
2. 4. National Research and Development Centre for Welfare and Health. Care periods in 2006 and trends of care periods in the years 1997-2006. Finnish official statistics. 2007>(in Finnish and Swedish) http://www.stakes.fi/tilastot/tilastotiedotteet/2007/Tt23_07.pdf (accessed October 2008).
3. 5. SITRA, Hospital District of Helsinki and Uusimaa, Nordic Health Care Group. Development of day surgery in the HUS district. In 2007 research and development project: development of surgery improves access to care and productivity. SITRA Health Care Programme's publications. 2008. http://www.sitra.fi/en/Programmes/health_care/news_2008-04-02.htm (accessed October 2008).