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Zufferey, Pascal; Tamborrini, Giorgio; Gabay, Cem; Krebs, Andreas; Kyburz, Diego; Michel, Beat; Moser, Urs; Villiger, Peter M.; So, Alexander; Ziswiler, Hans Rudolf (2013). Recommendations for the use of ultrasound in rheumatoid arthritis: literature review and SONAR score experience. Swiss medical weekly, 143, w13861. EMH Schweizerischer Ärzteverlag 10.4414/smw.2013.13861
