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Diagnostic algorithm for investigation of patients with joint swelling. From (4) Schneider M, Lelgemann M, Abholz HH, et al.: Management der frühen rheumatoiden Arthritis. Heidelberg: Springer-Verlag 2011; reproduced by kind permission of Springer, Heidelberg.
ESR, erythrocyte sedimentation rate; CRP, C-reactive protein; BC, blood count; OA osteoarthritis; NSAR, nonsteroidal antirheumatics; ↑, elevated
