4Choi HK, Mount DB, Reginato AM,et al. Pathogenesis of gout[J]. Ann Intern Med,2005,143(7) :499.
5Lawrence RC, Felson DT, Helmick CG, et al. Estimates of the prevalence of arthritis and other rheumatic conditions in the United States: parts Ⅱ [ J ]. Arthritis Rheum,2008, 58( 1 ) :26.
6Choi HK, Atkinson 'K, Karlson EW, et al. Purine-rich foods, dairy and protein intake, and the risk of gout in men [J]. N Engl J Med,2004,350(11) :1093.
7Thiele RG, Schlesinger N. Diagnosis of gout by ultrasound [ J ]. Rheumatology ( Oxford ) ,2007,46 ( 7 ) : 1116.
8Perez-Ruiz F, Naredo E. Imaging modalities and monito- ring measures of gout [ J ]. Curr Opin Rheumatol, 2007,19 (2) :128.
9Schumacher HR Jr, Becker MA, Edwards NL, et al. Mag- netic resonance imaging in the quantitative assessment of gouty tophi [ J ]. Int J Clin Pract, 2006,60 (4) :408.
10Dalbeth N, Clark B, Gregory K, et al. Computed tomography measurement of tophus volume: comparison with physical measurement [ J ]. Arthritis Rheum,2007,57 (3) :461.