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FRI0668 Item response theory to standardize patient reported physical function outcomes; linking 10 commonly used questionnaires to a common metric

M. Oude Voshaar, H. Vonkeman, D. Courvoisier, A. Finckh, L. Gossec, Leung Ying Ying, K. Michaud, G. Pinheiro, E. Soriano, N. Wulfraat, A. Zink, M. van de laar
2018 FRIDAY, 15 JUNE 2018   unpublished
doi:10.1136/annrheumdis-2018-eular.5135 fatcat:oagkhrmbozeqngrqwtcunhq75u