1. 1. Australian Institute of Health and Welfare., Australia's Health 2004. Australian Institute of Health and Welfare: Canberra, 2004 , pp.125 -129
2. 2. US Centers for Disease Control. Obesity Trends 1985-2005. [WWW document]. URL http://www.cdc.gov/nccdphp/dnpa/obesity/trend/maps/ (accessed 18 December 2007). Physical activity and health branch, Centers for Disease Control, Atlanta.