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Janssen M, Dijkmans BA, van der Sluys FA, van der Wielen JG, Havenga K, Vandenbroucke JP, Lamers CB, Zwinderman AH, Cats A.Janssen M, et al.Br J Rheumatol. 1992 Nov;31(11):747-52. doi: 10.1093/rheumatology/31.11.747.Br J Rheumatol. 1992.PMID: 1450796
Janssen M, Van Leeuwen MH, Albrecht H, Dijkmans BA.Janssen M, et al.Clin Rheumatol. 1988 Dec;7(4):545-7.Clin Rheumatol. 1988.PMID: 3246140Clinical Trial.No abstract available.