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Research funding: None declared.
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Author contributions: The author has accepted responsibility for the entire content of this manuscript and approved its submission.
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Competing interests: The author received research fees, speaker fees and participated in an advisory board of Roche Diagnostics, Rothkreutz, Switzerland.
References
1. Midgley, JE. Global FT4 Immunoassay Standardization. Response to: Kratzsch J et al. Global FT4 immunoassay standardization: an expert opinion review. Clin Chem Lab Med 2021;59:e223–4.10.1515/cclm-2021-0036Search in Google Scholar PubMed
2. Kratzsch, J, Baumann, NA, Ceriotti, F, Lu, ZX, Schott, M, van Herwaarden, AE, et al.. Global FT4 immunoassay standardization: an expert opinion review. Clin Chem Lab Med 2021;59:1013–23. https://doi.org/10.1515/cclm-2020-1696.Search in Google Scholar PubMed
3. Plebani, M, Giovanella, L. Reflex TSH strategy: the good, the bad and the ugly. Clin Chem Lab Med 2019;58:1–2. https://doi.org/10.1515/cclm-2019-0625.Search in Google Scholar PubMed
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