TY - JOUR AU - David Bunk AU - L Thienpont AU - K Van AU - J. Marriott AU - P Stokes AU - L Siekmann AU - A Kessler AU - Susan Tai 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 -