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Trueness verification in European external quality assessment schemes: time to care about the quality of the samples
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Pilot external quality assessment survey for post-market vigilance of in vitro diagnostic medical devices and investigation of trueness of participants results
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Survey of serum potassium reference measurements.
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Analytical specifications of reference methods compilation and critical discussion.
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Analytical quality specification for reference methods and operating specifications for networks of reference laboratories - Discussion paper from the members of the external quality assessment (EQA) Working Group B on target values in EQAS.
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Analytical qualtity specifications for reference methods and operating specifications for networks of reference laboratories. Recommendations of the European EQA-Organizers Working Group B