(Q30776475)
Statements
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 (English)
Pincus T
Strand V
Koch G
Amara I
Crawford B
Wolfe F