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In the article by Maldini et al in the March 2014 issue of Arthritis Care & Research (pages 454–463), there was an error in the prevalence of primary Sjögren's syndrome. The first sentence in the Conclusion section of the abstract should have read “The figure of 1.02–1.52 cases per 10,000 adults we found and estimates from the few other population-based census surveys support that the prevalence of diagnosed primary SS is between 1 and 9 cases per 10,000 (0.01-0.09%) in the general population.”

We regret the error.