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Abstract |
Analytical Performance of a New Immunoturbidimetric Assay for von Willebrand Factor (VWF) Activity Testing |
Background: Von Willebrand disease requires laboratory confirmation with quantitative and qualitative measurements of von Willebrand factor (VWF). Qualitative VWF-activity (VWF-Ac) tests have poor inter- and intra-laboratory reproducibility with coefficients of variation (CVs) as high as 64%, often lacking accuracy at low VWF-Ac levels.
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