1. World Health Organization Ageing and life course [on-line] http://www.who.int/fch/depts/alc/en
2. Incidence of functional limitation in older adults: The impact of gender, race, and chronic conditions;Dunlop;Arch Phys Med Rehabil,2002
3. World Health Organization Physical activity and older adults [on-line] http://www.who.int/dietphysicalactivity/factsheet_olderadults/en
4. Productivity Commission Economic Implications of an Ageing Australia, Research Report [on-line] www.pc.gov.au/projects/study/ageing/docs/finalreport
5. Banks G Health costs and policy in an ageing Australia 2008 [on-line] http://www.pc.gov.au/speeches/?a = 81758