1. JRA Criteria Subcommittee. Criteria for classification of juvenile rheumatoid arthritis. Bull Rheum Dis 25: 712–719, 1973.
2. Cassidy JT, Levinson JE, Brewer EJ Jr: The development of classification criteria for children with juvenile rheumatoid arthritis. Bull Rheum Dis 38, 6: 1–7, 1989.
3. Calabro JJ, Marchesano JM: The early natural history of juvenile rheumatoid arthritis. Med Clin North Am 52: 567–591, 1968.
4. Schaller JG, Wedgwood RJ: Juvenile rheumatoid arthritis: A review. Pediatrics 50: 940–953, 1972.
5. Schaller JG: Juvenile rheumatoid arthritis. Arthritis Rheum 20: 165–170, 1977.