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Immunoassay reagents intended to perform qualitative and/or quantitative analyses of a sample of body fluids (e.g., blood, secretions) to determine enzymes secreted by neoplastic tumor cells (i.e., tumor markers); these reagents include antibodies with the capability of binding to the tumor marker enzyme. Enzyme tumor markers include prostatic acid phosphatase (PAP), prostate-specific antigen (PSA), neuron-specific enolase, and thymidine kinase.
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