1. Lafortune G, Balestat G. Disability Study Expert Group Members. Trends in severe disability among older people: assessing the evidence in 12 OECD countries and the future implications. OECD Health Working Papers: 2007. http:// www.google.com/search?hl=en&q=OECD+HEALTH+WORKING+PAPERS+2007+disability+&btnG=Search
2. RIZIV (NIHDI). 2007: Confidential data files
3. Declercq A, Van Audenhoven T (2004) Services for supporting family carers of elderly people in Europe: characteristics, coverage and usage: national background report for Belgium. Leuven, Eurofamcare
4. WHO 2003 World oral health report. http://www.who.int/oral_health/publications/report03/en/
5. Scientific Institute of Public Health Epidemiology Unit 2004 Health interview survey in Belgium. http://www.iph.fgov.be/epidemio/epien/index4.htm