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Staud, R. The overestimation of disease activity in patients with rheumatoid arthritis and concomitant fibromyalgia. Curr Rheumatol Rep 11, 390–391 (2009). https://doi.org/10.1007/s11926-009-0069-2
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DOI: https://doi.org/10.1007/s11926-009-0069-2