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BackgroundSerum thyroglobulin (Tg) is essential in the follow‐up of patients with differentiated thyroid carcinoma (DTC). However, interchangeability and standardization between Tg assays have not yet been achieved, even with the development of an international Tg standard (Certified Reference Material 457 [CRM‐457]).
MethodsSerum Tg from 30 DTC patients and serially diluted CRM‐457 were measured...
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