3Tutuncu Z,Reed G,Kremer J,et al.Do patients with older-onset rheumatoid arthritis receive less aggressive treatment? Ann Rheum Dis,2006,65(9):1226-1229.
4Lopez-Hoyos M,Ruiz de Alegria C,Blanco R,et al.Clinical utility of anti-CCP antibodies in the differential diagnosis of elderly-onset rheumatoid arthritis and polymyalgia rheumatica.Rheumatology,2004,43 (5):655-657.
5Ceccato F,Roverano S,Barrionuevo A,et al.The role of anticyclic citrullinated peptide antibodies in the differential diagnosis of elderly-onset rheumatoid arthritis and polymyalgia rheumatica.Clin Rheumatol,2006,25 (6):854-857.
6Cannon GW,Holden WL,Juhaeri J,et al.Adverse events with disease modifying antirheumatic drugs (DMARD):a cohort study of leflunomide compared with other DMARD.J Rheumatol,2004,31(10):1906-1911.
7Hirshberg B,Muszkat M,Schlesinger O,et al.Safety of low dose methotrexate in elderly patients with rheumatoid arthritis.Postgrad Med J,2000,76(902):787-789.
8Chen DY,Hsieh TY,Chen YM,et al.Proinflammatory cytokine profiles of patients with elderly-onset rheumatoid arthritis:a comparison with younger-onset disease.Gerontology,2009,55 (3):250-258.
10Amett FC, Edworth SM, Bloch DA, et al. The American Rheumatism Association 1987 revised criteria for the classfication of rheumatiod arthritis[J]. Arthritts Rheum,1988,31:315 - 324.
8Malaviya AN,Collings JB,Makof A,et al.Effect of baseline rheumatoid factor(RF)levels on DAS28-respond to standard DMARDcombination treatment in patients with rheumatoid arthritis(RA)[J].J Rheumatol,2009,4(2):51-55.