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Holst-Jensen SE, Pfeiffer-Jensen M, Monsrud M, Tarp U, Buus A, Hessov I, Thorling E, Stengaard-Pedersen K.Holst-Jensen SE, et al.Scand J Rheumatol. 1998;27(5):329-36. doi: 10.1080/03009749850154339.Scand J Rheumatol. 1998.PMID: 9808394Clinical Trial.