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Ruiz-Arguelles A, Alarcón-Segovia D, Llorente L, Del Giudice-Knipping JA.Ruiz-Arguelles A, et al.Arthritis Rheum. 1980 Sep;23(9):1004-9. doi: 10.1002/art.1780230907.Arthritis Rheum. 1980.PMID: 6998486