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Immunoassay reagents intended to perform qualitative and/or quantitative analyses of a sample of body fluids to determine substances present in or secreted by neoplastic tumor cells (i.e., tumor markers). Tumor markers include substances such as enzymes, hormones, and oncofetal antigens that may be found in cells, tissues, or body fluids. Ideally, tumor markers should be specific for a given type of cancer, sensitive for screening and/or early diagnosis, and proportional to tumor load thus permitting the assessment of the response to treatment and monitoring for recurrence of cancer.
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