Global FT4 immunoassay standardization: an expert opinion review.
Juergen KratzschNikola A BaumannFerruccio CeriottiZhong X LuMatthias SchottAntonius E van HerwaardenJosé Gilberto Henriques VieiraDusanka KasapicLuca M GiovanellaPublished in: Clinical chemistry and laboratory medicine (2020)
Collaborative efforts by manufacturers, laboratories, and clinicians are required to achieve successful global standardization of the FT4 assays.