Clarke, Michael; Black, Lucinda; Hart, Prue; Jones, Anderson P; Palmer, Debra J; Siafarikas, Aris; Lucas, Robyn; Gorman, Shelley
Accurately detecting vitamin D deficiency (defined as concentration in blood of 25-hydroxyvitamin D (25(OH)D), <20 ng/mL) is important for both clinicians and researchers. Drawing blood may be difficult in some populations, such as infants and children. We thus explored the development of a method to measure 25(OH)D concentrations in saliva, using a liquid chromatography tandem mass spectrometry (LC–MS/MS) assay. Using 25(OH)D3 standards spiked into synthetic saliva, we generated a standard...[Show more]
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