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Characteristics of TMG binding of PSA in ELISA. All data are the means of triplicate experiments. (A) Optical density (OD) values in ELISA. Solid bar, intact serum; open bar, serum heated at 56°C for 30 min. (B) Binding of TMG in the presence or absence of PSA in the reaction medium. Closed circle, in the absence of PSA; open circle, in the presence of PSA (50 μg/ml).
