1. Committee of the American Rheumatism Association (Chairman Ropes MW). Diagnostic Criteria for Rheumatoid Arthritis: 1959 revision, Ann of Rheum Dis 1959, 18, 49–53.
2. Alarcon, G.S., Koopman, W.J. The carpometacarpal ratio: A useful method for assessing disease progression in rheumatoid arthritis. J Rheumatol 1985, 12, 846–848.
3. Brook, A., Corbett, M. Radiologic changes in early rheumatoid diseases. Ann Rheum Dis 1977, 36, 71–73.
4. Fletcher, M.D., Rowley, K.A. Radiologic feactures of rheumatoid arthritis. Br Med J 1977, 25, 282–295.
5. Martel, W. The pattern of rheumatoid arthritis in the hand and wrist. Radiol Clin North Am 1964, 2, 221–234.