1. Prevalence of doctor-diagnosed arthritis and arthritis-attributable activity limitation–United States, 2010-2012;MMWR Morb Mortal Wkly Rep,2013
2. Aetiology and risk factors for osteoarthritis and rheumatoid arthritis;Rayman,2008
3. Centers for Disease Control and Prevention. Arthritis basics. 2018. https://www.cdc.gov/arthritis/basics/index.html.Accessed January 15, 2018.
4. Johns Hopkins Arthritis Center. Rheumatoid arthritis signs and symptoms. 2017. https://www.hopkinsarthritis.org/arthritis-info/rheumatoid-arthritis/ra-symptoms/. Accessed February 18, 2018.
5. Arthritis: Pathophysiology, Prevention, and Therapeutics;Bagchi,2011