Access Thyroglobulin Calibrators
It has been determined through an internal investigation that the alternate Access Thyroglobulin calibrator cards for use with the Thyg reagent packs distributed in April 2023 will cause a decrease of approximately 11% in patient results.
worldwide except US, Canada, and China
https://www.accessdata.fda.gov/scripts/ires/index.cfm?Product=Z-0100-2024