Rheumatoid arthritis (RA) is a chronic, systemic inflammatory disorder that may affect many tissues and organs, but principally attacks the joints producing an inflammatory synovitis ...
http://en.wikipedia.org/wiki/Rheumatoid_arthritis
Learn more about rheumatoid arthritis, an autoimmune disease that causes chronic joint inflammation, which has symptoms that include stiffness, fever, muscle and joint aches, loss ...
http://www.medicinenet.com/rheumatoid_arthritis/article.htm
Arthritis & Rheumatism Official Journal of the American College of Rheumatology Volume 39, No. 5, May 1996, pp 713-722
http://www.rheumatology.org/publications/guidelines/ra-mgmt/ra-mgmt.asp
Questions and Answers About Juvenile Rheumatoid Arthritis Publication Date: May 1998. What Is Arthritis? What Is Juvenile Rheumatoid Arthritis?
http://www.pueblo.gsa.gov/cic_text/health/juvarth/juvarthr.htm