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Christopher T. Sempos

National Institutes of Health
University at Buffalo

186

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Assessment of serum total 25-hydroxyvitamin D assay commutability of Standard Reference Materials and College of American Pathologists Accuracy-Based Vitamin D (ABVD) Scheme and Vitamin D External Quality Assessment Scheme (DEQAS) materials: Vitamin D Standardization Program (VDSP) Commutability Study 2

2021 Analytical and Bioanalytical Chemistry
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Assessment of serum total 25-hydroxyvitamin D assays for Vitamin D External Quality Assessment Scheme (DEQAS) materials distributed at ambient and frozen conditions

2021 Analytical and Bioanalytical Chemistry
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Recommendations on the measurement and the clinical use of vitamin D metabolites and vitamin D binding protein - A position paper from the IFCC Committee on Bone Metabolism

2021 Clinica Chimica Acta
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The validity of serum alkaline phosphatase to identify nutritional rickets in Nigerian children on a calcium-deprived diet.

2021 The Journal of Clinical Endocrinology and Metabolism
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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.

2021 Analytical and Bioanalytical Chemistry
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Interlaboratory comparison of 25-hydroxyvitamin D assays: Vitamin D Standardization Program (VDSP) Intercomparison Study 2 - Part 2 ligand binding assays - impact of 25-hydroxyvitamin D2 and 24R,25-dihydroxyvitamin D3 on assay performance.

2021 Analytical and Bioanalytical Chemistry
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Vitamin D Standardization Program (VDSP) Intralaboratory Study for the Assessment of 25-Hydroxyvitamin D Assay Variability and Bias.

2021 The Journal of Steroid Biochemistry and Molecular Biology
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Serum 25-hydroxyvitamin D requirements to prevent nutritional rickets in Nigerian children on a low-calcium diet-a multivariable reanalysis.

2021 The American Journal of Clinical Nutrition
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The measurement of vitamin D metabolites part II-the measurement of the various vitamin D metabolites.

2020 Hormones (Greece)
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Consensus statement from 2(nd) International Conference on Controversies in Vitamin D.

2020 Reviews in Endocrine & Metabolic Disorders
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Citations (72)