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Clinical Chemistry|November 1, 1991
Cholesterol operational process specifications for assuring the quality required by CLIA proficiency testingJ O Westgard, D A WiebeClinical Chemistry|July 1, 1993
Cholesterol--a model system to relate medical needs with analytical performanceD A Wiebe, J O WestgardClinical Chemistry|May 1, 1991
Laboratory process specifications for assuring quality in the U.S. National Cholesterol Education ProgramJ O Westgard, P H Petersen, D A WiebeClinical Chemistry|November 20, 1997
Comparison of NCEP performance specifications for triglycerides, HDL-, and LDL-cholesterol with operating specifications based on NCEP clinical and analytical goalsP C Fallest-Strobl, E Olafsdottir, D A Wiebe, et al.Critical Reviews in Clinical Laboratory Sciences|January 1, 1981
Precision and accuracy: concepts and assessment by method evaluation testingJ O WestgardScandinavian Journal of Clinical and Laboratory Investigation|February 10, 2000
The need for a system of quality standards for modern quality managementJ O WestgardClinical Laboratory Science : Journal of the American Society for Medical Technology|August 6, 1995
A method evaluation decision chart (MEDx chart) for judging method performanceJ O WestgardArchives of Pathology & Laboratory Medicine|July 1, 1992
Assuring analytical quality through process planning and quality controlJ O WestgardClinical Laboratory Management Review : Official Publication of the Clinical Laboratory Management Association|June 6, 1996
Error budgets for quality management--practical tools for planning and assuring the analytical quality of laboratory testing processesJ O WestgardPageof 10