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Walker, Ulrich A; Jaeger, Veronika K; Bruppacher, Katharina M; Dobrota, Rucsandra; Arlettaz, Lionel; Banyai, Martin; Beron, Jörg; Chizzolini, Carlo; Groechenig, Ernst; Mueller, Rüdiger B; Spertini, François; Villiger, Peter; Distler, Oliver (2018). Prospective evaluation of the capillaroscopic skin ulcer risk index in systemic sclerosis patients in clinical practice: a longitudinal, multicentre study. Arthritis research & therapy, 20(1), p. 239. BioMed Central 10.1186/s13075-018-1733-6
