DOI: 10.1055/s-00033990

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References

Pincus T, Strand V, Koch G. , et al.
An index of the three core data set patient questionnaire measures distinguishes efficacy of active treatment from that of placebo as effectively as the American College of Rheumatology 20% response criteria (ACR20) or the Disease Activity Score (DAS) in a rheumatoid arthritis clinical trial.

Arthritis Rheum 2003;
48 (03) 625-630

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