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Aletaha D, Neogi T, Silman A J, et al. 2010 Rheumatoid arthritis classification criteria: an American College of Rheumatology/European League Against Rheumatism collaborative initiative. Ann Rheum Dis 2010;69:1580–88. Table 3 was published with the incorrect header, missing letters A,B,C and D and missing scores. The full text and pdf have been corrected online. The authors have noted additional errors: the following should read: Abnormal CRP or abnormal ESR and not Abnormal CRP or normal ESR. In table 2, MTP has been mentioned twice. It should read: ‘Small joints’ refers to the MCP joints, proximal interphalangeal joints, second to fifth MTP joints, thumb interphalangeal joints and wrists. Also, on page 1583, the Spearman r should be “0.85” rather than “0.0.85”.