1) Yamanaka H, Seto Y, Tanaka E et al:Management of rheumatoid arthritis:the 2012 perspective. Mod Rheumatol 23:1-7, 2013
2) Haraoui B, Smolen JS, Aletaha D et al;Treat to Target Taskforce.:Treating Rheumatoid Arthritis to Target:multinational recommendations assessment questionnaire. Ann Rheum Dis 70:1999-2002, 2011
3) Smolen JS, Landewe R, Breedveld FC et al:EULAR recommendations for the management of rheumatoid arthritis with synthetic and biological disease-modifying antirheumatic drugs. Ann Rheum Dis 69:964-975, 2010
4) Momohara S. Ikari K, Mochizuki T et al:Declining use of synovectomy surgery for patients with rheumatoid arthritis in Japan. Ann Rheum Dis 68:291-292, 2009
5) Tanaka E, Hoshi D, Igarashi A et al:Analysis of direct medical and nonmedical costs for care of rheumatoid arthritis patients using the large cohort database, IORRA. Mod Rheumatol 23:742-751, 2012
6) Gomez-Reino JJ, Carmona L, Valverde VR et al:Treatment of rheumatoid arthritis with tumor necrosis factor inhibitors may predispose to significant increase in tuberculosis risk:a multicenter active-surveillance report. Arthritis Rheum 48:2122-2127, 2003
7) Takeuchi T, Tatsuki Y, Nogami Y et al:Postmarketing surveillance of the safety profile of infliximab in 5000 Japanese patients with rheumatoid arthritis. Ann Rheum Dis 67:189-194, 2008
8) Komano Y, Harigai M, Koike R et al:Pneumocystis jiroveci pneumonia in patients with rheumatoid arthritis treated with infliximab:a retrospective review and case-control study of 21 patients. Arthritis Rheum 61:305-312, 2009
9) Nakajima A, Saito K, Kojima T et al:No increased mortality in patients with rheumatoid arthritis treated with biologics:results from the biologics register of six rheumatology institutes in Japan. Mod Rheumatol 23:945-952, 2013
10) 山中寿:関節リウマチ. 内科学第10版, 矢崎義雄 総編集, 朝倉書店, 東京, 2013, pp.1252-1258