5Verschueren P, Esselens G, Westhovens R. Daily Practice effectiveness of a step-down treatment in comparison with a tight step-up for early rheumatoid arthritis[ J]. Rheumatology (Oxford) ,2008,47 ( 1 ) :59-64.
6Boers M. COBRA combination therapy in daily practice-getting back to the future[J]. Rheumatology(Oxford) ,2008,47( 1 ) :1-2.
7Arnett FC,Edworthy SM, Bloch DA,et al. The American Rheumatism Association 1987 revised criteria for the classification of rheumatoid arthritis[J]. Arthritis Rheum,1988,31 (3) :315-524.
8Felson DT, Anderson JJ, Boers M, et al. American College of Rheumatology. Preliminary definition of improvement in rheumatoid arthritis[J]. Arthritis Rheum, 1995,38 ( 6 ) : 727-735.
9Prevoo ML,van' t Hof MA,Kuper HH,et al. Modified disease activity scores that include twenty-eight-joint counts. Development and validation in a prospective longitudinal study of patients with rheumatoid arthritis [ J ]. Arthritis Rheum, 1995,38 ( 1 ) : 44 - 48.
