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How to avoid phenotypic misclassification in using joint destruction as an outcome measure for rheumatoid arthritis?

Annette H M van der Helm-van Mil1, Rachel Knevel, Désirée van der Heijde

  • 1Department of Rheumatology, Leiden University Medical Center, PO Box 9600, 2300 RC Leiden, The Netherlands. avdhelm@lumc.nl

Rheumatology (Oxford, England)
|March 6, 2010
PubMed

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