Patients at the outpatient rheumatology clinic: do they really need to be there? von Schulpen, G.J.C., Vierhout, W.P.M., van der Heijde, D.M., Landewé, R.B., Winkens, R.A.G., Wesselingh-Megens, A.M.K., van der Linden, S.

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