How accurate are assays for 25-hydroxyvitamin D? Data from the international vitamin D external quality assessment scheme
- PMID: 15375018
- DOI: 10.1373/clinchem.2004.040683
How accurate are assays for 25-hydroxyvitamin D? Data from the international vitamin D external quality assessment scheme
Comment in
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Underestimation of serum 25-hydroxyvitamin D by the Nichols Advantage Assay in patients receiving vitamin D replacement therapy.Clin Chem. 2005 Jun;51(6):1072-4; author reply 1074. doi: 10.1373/clinchem.2005.048355. Clin Chem. 2005. PMID: 15914797 No abstract available.
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