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2019 Comparison of TT4 methods

A recent study of the automated immunoassay methods compared the major diagnostic instruments against a ID-LCMS reference method. When compared to the "true values", can any methods hit the most evidence-based biological variation-derived performance specifications? Can any methods hit the minimum performance specifications, for that matter?

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WESTGARD QC promotes the latest news, education, and tools in the quality control field. Our goal is to bring tools, technology and training into today's healthcare industry — by featuring QC lessons, QC case studies and frequent essays from leaders in the quality control area. This is also a reference source for quality requirements, including CLIA requirements for analytical quality. This website features the best explanation of the Multirule ("Westgard Rules") and how to use them. For laboratory and healthcare professionals looking for educational and reference material in the quality control field.

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