1. Lagace C, Perruccio A, DesMeules M, Badley EM: The Impact of Arthritis on Canadians. Arthritis in Canada: An Ongoing Challenge. Edited by: Badley EM, DesMeules M. 2003, Ottawa: Health Canada, 7-31.
2. National and state medical expenditures and lost earnings attributable to arthritis and other rheumatic conditions – United States, 2003. MMWR Morb Mortal Wkly Rep. 2007, 56: 4-7.
3. Hootman JM, Helmick CG: Projections of US prevalence of arthritis and associated activity limitations. Arthritis Rheum. 2006, 54: 226-229. 10.1002/art.21562.
4. Perruccio AV, Power JD, Badley EM: Revisiting arthritis prevalence projections – it's more than just the aging of the population. J Rheumatol. 2006, 33: 1856-1862.
5. Fife RS: Osteoarthritis: Epidemiology, pathology and pathogenesis. Primer on the rheumatic diseases. Edited by: Klippel JH, Weyand CM, Wortmann RL. 1997, Atlanta: Atlanta Arthritis Foundation, 216-217.