Juvenile rheumatoid arthritis

Juvenile rheumatoid arthritis (JRA) is a group of diseases characterized by chronic arthritis. The expert group of the Pediatric Standing Committee of the International Union of Rheumatology has swollen joints of unknown origin in childhood for more than 6 weeks. Unified as juvenile idiopathic arthritis (JIA), thus replacing the two classification criteria of juvenile rheumatoid arthritis and juvenile chronic arthritis.

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