1. Brewer EJ, Bass J, Baum J et al. Current proposed revision of JRA criteria. Arthritis Rheum1997;20(suppl.):195–9.
2. European League against Rheumatism: EULAR Bulletin No. 4. Nomenclature and classification of arthritis in children. Basel: National Zeitung, 1977.
3. Petty RE, Southwood TR, Baum J et al. Revision of the proposed classification criteria for juvenile idiopathic arthritis: Durban 1997. J Rheumatol.
4. Felson DT. Epidemiology of the rheumatic diseases. In: Koopman WJ, ed. Arthritis and allied conditions, 13th edn. Baltimore: Williams and Wilkens, 1996:9.
5. Duffy CM, Duffy KN. Health assessment in the rheumatic diseases of childhood. Curr Opin Rheumatol1997; 9:440–7.