6Kumar A,Christian G.Enzymatic assay of total cholesterol in serum or plasma by amperometric measurementofrate of oxygen depletion following saponification[J].Clin.Chim.1996,74(10),101.
7Westgard J O. Wiebe D A. Cholesterel operational specifications for assuring qualinty required by CLIA proficiency testing[J]. Clin Chem, 1991 ; 37 : 1938-1944.
8U. S. Deratment of Health and Human Services. Medicare,Medicaid and CLIA programs- Regulations implementing the Clinical Laboratory Improvementing of 1988 (CLIA)[J]. Final rule. Fed Regist, 1992.
9Westgard JO, Groth T, Aronsson T, et al.Performance characteristics of rules for internal quality control: Probabilities for false rejection and error detection[J].Clin Chem,1977,23:1857-1867.
10Westgard JO,Groth T.A predictive value model for quality control:Effects of the prevalence of errors on the performance of control procedures[J].Am J Clin Pathol,1983,80:49-56.
