1. Designing randomized, controlled trials aimed at preventing or delaying functional decline and disability in frail, older persons: a consensus report;Ferrucci;Journal of the American Geriatrics Society,2004
2. Public Health Agency of Canada 2006 What determines health? http://www.phac-aspc.gc.ca/ph-sp/determinants/index.html#What
3. Public Health Agency of Canada 2009 Investing in prevention: the economic perspective http://www.phac-aspc.gc.ca/ph-sp/pdf/preveco-eng.pdf
4. Statistics Canada 2010 Population projections for Canada, provinces and territories: 2009-2036 http://www.statcan.gc.ca/pub/91-520-x/91-520-x2010001-eng.pdf