1. Helmick CG, Felson DT, Lawrence RC, Gabriel S, Hirsch R, Kwoh CK et al (2008) Estimates of the prevalence of arthritis and other rheumatic conditions in the United States. Part I. Arthritis Rheum 58(1):15–25
2. Badley EM, Rasooly I, Webster GK (1994) Relative importance of musculoskeletal disorders as a cause of chronic health problems, disability, and health care utilization: findings from the 1990 Ontario Health Survey. J Rheumatol 21(3):505–514
3. Power JD, Perruccio AV, Desmeules M, Lagace C, Badley EM (2006) Ambulatory physician care for musculoskeletal disorders in Canada. J Rheumatol 33(1):133–139
4. McCarthy EM, Sheane BJ, Cunnane G (2009) Greater focus on clinical rheumatology is required for training in internal medicine. Clin Rheumatol 28(2):139–143
5. Glazier RH, Dalby DM, Badley EM, Hawker GA, Bell MJ, Buchbinder R et al (1998) Management of common musculoskeletal problems: a survey of Ontario primary care physicians. CMAJ, Can Med Assoc J 158(8):1037–1040