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Zufferey, Pascal; Courvoisier, Delphine S; Nissen, Michael J; Möller, Burkhard; Brulhart, Laure; Ziswiler, Hans Ruedi; Tamborrini, Giorgio; Ciurea, Adrian; D'Agostino, Maria-Antonietta; Finckh, Axel (2020). Discordances between clinical and ultrasound measurements of disease activity among RA patients followed in real life. Joint bone spine, 87(1), pp. 57-62. Elsevier 10.1016/j.jbspin.2019.09.010
