Concerning the vitamin D reference range: pre-analytical and analytical variability of vitamin D measurement
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DOI: 10.11613/bm.2017.030501
Abstract: Unlike other vitamins, the vitamin D concentration in blood varies cyclically over the course of the year in relation to genetic (gender, ethnicity, polymorphisms) and environmental factors (sunlight exposure, diet, food-related or direct vitamin D… read more here.
Keywords: vitamin concentrations; variability; variability vitamin; vitamin ... See more keywords