Agreement of Immunoassay and Tandem Mass Spectrometry in the Analysis of Cortisol and Free T4: Interpretation and Implications for Clinicians

Objective. To quantify differences in results obtained by immunoassays (IAs) and tandem mass spectrometry (MSMS) for cortisol and free thyroxine (FT4). Design & Patients. Cortisol was measured over 60 minutes following a standard ACTH stimulation test (n=80); FT4 was measured over time in two co...

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Bibliographic Details
Main Authors: Rochelle E. Tractenberg, Jacqueline Jonklaas, Steven J. Soldin
Format: Article
Language:English
Published: Wiley 2010-01-01
Series:International Journal of Analytical Chemistry
Online Access:http://dx.doi.org/10.1155/2010/234808
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