Simplified 25-Hydroxyvitamin D Standardization and Optimization in Dried Blood Spots by LC-MS/MS., J AOAC Int. 2017 May 11
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Measuring 25-hydroxyvitamin D in a clinical environment: challenges and needs., Am J Clin Nutr 88: 507S-510S
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Phase switching SPE for faster 1,25-dihydroxyvitamin D analysis. 1986., Clin Chem 54: 446-7
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Assessment of circulating 25(OH)D and 1,25(OH)2D: emergence as clinically important diagnostic tools., Nutr Rev 65: S87-90
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The assessment of circulating 25(OH)D and 1,25(OH)2D: where we are and where we are going., J Steroid Biochem Mol Biol 103: 473-6
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Circulating 25-hydroxyvitamin D levels indicative of vitamin D sufficiency: implications for establishing a new effective dietary intake recommendation for vitamin D., J Nutr 135: 317-22
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Editorial: The determination of circulating 25-hydroxyvitamin D: no easy task., J Clin Endocrinol Metab 89: 3149-51
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Comparison of commercially available (125)I-based RIA methods for the determination of circulating 25-hydroxyvitamin D., Clin Chem 46: 1657-61
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Quantitation of 25-hydroxyvitamin D and 1,25-dihydroxyvitamin D by radioimmunoassay using radioiodinated tracers., Methods Enzymol 282: 174-86
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1,25-Dihydroxyvitamin D3-26,23-lactone interferes in determination of 1,25-dihydroxyvitamin D by RIA after immunoextraction, Clin Chem 41: 1313-4
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Determination of vitamin D status by radioimmunoassay with an 125I-labeled tracer., Clin Chem 39: 529-33
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Assay of circulating 1,25-dihydroxyvitamin D involving a novel single-cartridge extraction and purification procedure., Clin Chem 32: 2060-3
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1,25-dihydroxyvitamin D microassay employing radioreceptor techniques., Methods Enzymol 123: 176-85
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Quantitation of vitamin D and its metabolites and their plasma concentrations in five species of animals., Anal Biochem 116: 189-203
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