1. Prevalence of self-reported arthritis or chronic joint symptoms among adults, United States 2001;Centers for Disease Control and Prevention;MMWR,2002
2. Public health and aging: projected prevalence of self-reported arthritis or chronic joint symptoms among persons aged >65 years – United States, 2005–2030;Centers for Disease Control and Prevention;MMWR,2003
3. Adults who have never seen a health-care provider for chronic joint symptoms – United States, 2001;Centers for Disease Control and Prevention;MMWR,2003
4. Direct and indirect costs of arthritis and other rheumatic conditions – United States, 1997;Centers for Disease Control and Prevention;MMWR,2003
5. The incidence and severity of rheumatoid arthritis, results from a county register in Oslo, Norway;Uhlig;The Journal of Rheumatology,1998