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Kotaniemi A, Piirainen H, Paimela L, Leirisalo-Repo M, Uoti-Reilama K, Lahdentausta P, Ruotsalainen P, Kataja M, Väisänen E, Kurki P.Kotaniemi A, et al.J Rheumatol. 1996 Nov;23(11):1875-9.J Rheumatol. 1996.PMID: 8923359Clinical Trial.