Corrections
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An author affiliation was incorrect in the an article published in March 2008 (Jónsdóttir T, Gunnarsson I, Risselada A, *et al.* Treatment of refractory SLE with rituximab plus cyclophosphamide: clinical effects, serological changes, and predictors of response. *Ann Rheum Dis* 2008;**67**:330–4). The correct affiliation for all authors is Department of Rheumatology, The Karolinska University Hospital, The Karolinska Institutet, Stockholm, Sweden.