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  • Title: Lack of comparability between CEA analyses using three different methods.
    Author: Davidson H, Pledger DR, Belfield A.
    Journal: Ann Clin Biochem; 1985 Jan; 22 ( Pt 1)():94-7. PubMed ID: 3985564.
    Abstract:
    Three different methods for the assay of carcinoembryonic antigen were investigated--radioimmunoassay, enzyme-linked immunoassay, and a commercial immunoradiometric assay. Two standard preparations of CEA were used: the 1st British Standard (73/601) and a commercial preparation obtained as a component of the IRMA kit. Serum samples were assayed by each method against each standard material. Significant differences between results were obtained when the different methods were compared. When using the two standards in the same assay system no significant differences were found between results. A possible explanation and the implications of these findings for the routine assay of CEA are discussed.
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