3Moriwaki Y, Yamamoto T, Takahashi S,et al.Spot urine uric acid to creatinine ratio used in the estimation of uric acid excertion in primary gout[J].J Rheumatol,2001,28:1306-1310.
4Choi HK,Curhan G.Beer, liquor, and wine consumption and serum uric acid level:the Third ealth and Nutrition Examination Survey[J].Arthritis Rheum,2004,51 : 1023-1029.