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This article reviews the role of thyrotropin assays in clinical medicine and illustrates
the advantages and limitations of assays that can measure subnormal concentrations.
Analytic considerations that can significantly alter the performance of these assays
are outlined. The concept of assay generations is defined, and the potential roles
of third and fourth generation assays are postulated. In addition, a diagnostic strategy
is presented for using TSH and other procedures in the diagnosis and management of
thyroid disease.
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© 1993 Elsevier Inc. Published by Elsevier Inc. All rights reserved.