The incidence of rheumatoid arthritis in the UK: comparisons using the 2010 ACR/EULAR classification criteria and the 1987 ACR classification criteria. Results from the Norfolk Arthritis Register.
Humphreys, Jennifer H 1; Verstappen, Suzanne M M 1; Hyrich, Kimme L 1; Chipping, Jacqueline R 2; Marshall, Tarnya 3; Symmons, Deborah P M 1,4
[Report] Annals of the Rheumatic Diseases. 72(8):1315-1320, August 2013.

(Format: HTML, PDF)