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Sundström B, Johansson G, Johansson I, Wållberg-Jonsson S.Sundström B, et al.Clin Rheumatol. 2014 Jan;33(1):111-7. doi: 10.1007/s10067-013-2410-4. Epub 2013 Oct 19.Clin Rheumatol. 2014.PMID: 24135890