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Sawatzky R, Kwon JY, Barclay R, Chauhan C, Frank L, van den Hout WB, Nielsen LK, Nolte S, Sprangers MAG; Response Shift – in Sync Working Group.Sawatzky R, et al. Among authors: kwon jy.Qual Life Res. 2021 Dec;30(12):3343-3357. doi: 10.1007/s11136-021-02766-9. Epub 2021 Mar 2.Qual Life Res. 2021.PMID: 33651278Free PMC article.