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van der Heijde D, Schiff M, Tanaka Y, Xie L, Meszaros G, Ishii T, Casillas M, Ortmann RA, Emery P.van der Heijde D, et al. Among authors: ortmann ra.RMD Open. 2019 May 10;5(1):e000898. doi: 10.1136/rmdopen-2019-000898. eCollection 2019.RMD Open. 2019.PMID: 31168413Free PMC article.