Sempos, C T; Vesper, H; Phinney, K; Thienpont, L; Coates, P; Lucas, Robyn
Wide spread variation in measurement results of total 25-hydroxyvitamin D (25(OH)D) confounds international efforts to develop evidence-based clinical guidelines. Accordingly, NIH Office of Dietary Supplements (ODS) in collaboration with CDC National Center for Environmental Health (NCEH), National Institute of Standards and Technology (NIST) and Ghent University established the Vitamin D Standardization Program (VDSP) in November 2010. VDSP objectives include: (1) standardize 25(OH)D...[Show more]
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