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Pisetsky et al reported on assay variation in the detection of antinuclear antibodies (ANA) in sera of patients with established systemic lupus erythematosus (SLE).1 The authors determined ANA in sera ...
In this article, the 2009 European League Against Rheumatism (EULAR) recommendations for the management of antineutrophil cytoplasmic antibody (ANCA)-associated vasculitis (AAV) have been updated. The ...