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Clinical chemistry reagents consisting of serum pooled either from donors with normal levels of lipids or from disease-state donors with above-normal concentrations of total lipoproteins or of some specific lipids; less frequently, they are obtained by extracting some lipids from normal donor serum (i.e., lipid-deficient serum). Lipid control reagents are mostly used for quality control of specific lipid assays performed in a sample of a body fluid.
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