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Interlaboratory comparison of 25-hydroxyvitamin D assays: Vitamin D Standardization Program (VDSP) Intercomparison Study 2 — Part 1 liquid chromatography – tandem mass spectrometry (LC-MS/MS) assays — impact of 3-epi-25-hydroxyvitamin D3 on assay performance

Stephen A. Wise, Johanna E Camara, Carolyn Q Burdette, Grace Hahm, Federica Nalin, Adam J. Kuszak, Joyce Merkel, Ramón Durazo-Arvizú, Emma L. Williams, Andrew N. Hoofnagle,

Analytical and Bioanalytical Chemistry · 2021 · 29 citations · 39 references

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39

Congenital rickets.

PubMed · 1990 · 1.8K citations

Assay Variation Confounds the Diagnosis of Hypovitaminosis D: A Call for Standardization

Neil Binkley, Diane Krueger, C. S. Cowgill et al. · The Journal of Clinical Endocrinology & Metabolism · 2004 · 580 citations · Full text

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Accuracy of 6 Routine 25-Hydroxyvitamin D Assays: Influence of Vitamin D Binding Protein Concentration

Annemieke C. Heijboer, Marinus A. Blankenstein, Ido P. Kema et al. · Clinical Chemistry · 2012 · 338 citations · Full text

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Vitamin D status as an international issue: national surveys and the problem of standardization.

Christopher T. Sempos, Hubert W. Vesper, Karen W. Phinney et al. · PubMed · 2012 · 303 citations · Full text

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Development of a Candidate Reference Measurement Procedure for the Determination of 25-Hydroxyvitamin D<sub>3</sub> and 25-Hydroxyvitamin D<sub>2</sub> in Human Serum Using Isotope-Dilution Liquid Chromatography−Tandem Mass Spectrometry

Susan S.-C. Tai, Mary Bedner, Karen W. Phinney · Analytical Chemistry · 2010 · 268 citations · Full text

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