TY - JOUR AU - Thienpont, Linda AU - Uytfanghe, Katleen Van AU - Marriot, J AU - Tokura, Y AU - Siekmann, Lothar AU - Kessler, Anja AU - Bunk, David AU - Tai, Susan C2 - Clinical Chemistry DA - 2021-10-12 15:10:23 LA - en PB - Clinical Chemistry PY - 2021 TI - Feasibility Study of the Use of Frozen Human Sera in Split-Sample Comparison of Immunoassays With Reference Measurement Procedures for Total Thyroxine and Total Triiodothyronine Measurement ER -