TY - RPRT TI - Analytical quality specifications for reference methods and operating specifications for networks of reference laboratories. discussion paper from the members of the external quality assessment (EQA) Working Group B1) on target values in EQAS. AU - L Thienpont AU - C Franzini AU - J Kratochvila AU - J Middle AU - C Ricós AU - L Siekmann AU - D Stöckl PY - 1995 UR - https://pubmed.ncbi.nlm.nih.gov/8845428/ ID - 8845428 ER -