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en.wikipedia.org/wiki/Rheumatoid_arthritis

Rheumatoid arthritis (RA) is a long-term autoimmune disorder that primarily affects joints. It typically results in warm, swollen, and painful joints. Pain and ...

www.arthritis.org/about-arthritis/types/rheumatoid-arthritis/what-is-rheumatoid-arthritis.php

Rheumatoid arthritis (RA) is an autoimmune disease in which the body's immune system – which normally protects its health by attacking foreign substances like ...

www.arthritis.org/about-arthritis/types/rheumatoid-arthritis

Rheumatoid arthritis is an autoimmune disease in which the body's immune system – which normally protects its health by attacking foreign substances like ...

www.webmd.com/rheumatoid-arthritis/rheumatoid-arthritis-basics

Jun 7, 2017 ... WebMD explains the causes, symptoms, diagnosis, and treatment of rheumatoid arthritis.

www.medicinenet.com/rheumatoid_arthritis_early_symptoms/article.htm

Oct 27, 2017 ... Rheumatoid arthritis (RA) is a type of inflammatory arthritis. RA disease is characterized by chronic joint inflammation (in the fingers, hands, ...

www.mayoclinic.org/diseases-conditions/rheumatoid-arthritis/symptoms-causes/syc-20353648

Aug 9, 2017 ... Rheumatoid arthritis is a chronic inflammatory disorder that can affect more than just your joints. In some people, the condition also can ...

www.medicinenet.com/rheumatoid_arthritis/article.htm

Rheumatoid arthritis is an autoimmune disease that causes chronic joint inflammation. There is no cure for RA. Read about 15 RA symptoms and signs, ...

www.niams.nih.gov/health-topics/rheumatoid-arthritis

Apr 30, 2017 ... Rheumatoid arthritis is a disease that causes pain, swelling, and stiffness in your joints. This disease often occurs in more than one joint and ...

www.rheumatology.org/I-Am-A/Patient-Caregiver/Diseases-Conditions/Rheumatoid-Arthritis

Information for patients and caregivers on rheumatoid arthritis (RA): what it is, causes, getting diagnosed, treatment options and tips for living with RA.