TY - JOUR AU - Bunk, David AU - Thienpont, L AU - Van, K AU - Marriott, J. AU - Stokes, P AU - Siekmann, L AU - Kessler, A AU - Tai, Susan C2 - Clinical Chemistry DA - 2005-11-01 LA - en PB - Clinical Chemistry PY - 2005 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 -