8Felson D T, Anderson J J, Boers M, et al. American college of rheurnatology, preliminary definition of improvement in rheumatoid arthritis[J]. Arthritis & Rheumatism,1995, 38(6): 727-735.
9Higgins TPT, Altman D G-(editors): Chapter 8:assessing risk of bias in included studies, in: higgins jpt,green s(editors), cochrane handbook for systematic reviews of Interventions Version 5.0.2(up-dated September2009) [M]. The Cochrane Collaboration, 2009.
10Verhagen A P, Bierma-Zeinstra S M A, Boers M, et al. Balneotherapy for rheumatoid arthritis[J]. The Cochrane Library,2008 (4):cD007277.
