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. 2014 Aug 17;29(6):451–461. doi: 10.1002/jcla.21793

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© 2014 The Authors. Journal of Clinical Laboratory Analysis Published by Wiley Periodicals, Inc.

This is an open access article under the terms of the http://creativecommons.org/licenses/by/4.0/, which permits use and distribution in any medium, provided the original work is properly cited, the use is non‐commercial and no modifications or adaptations are made.

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Within‐run and within‐laboratory (intermediate) precision. Within‐run precision (open circles) of the Elecsys Vitamin D Total assay was determined by measuring in a single run 21 aliquots of each of two assay controls (PreciControl Varia (PCV1 and PCV2)) and three serum pools (SP1, SP2, SP3, prepared separately by each of the five study sites). Within‐laboratory (intermediate) precision (filled circles) was evaluated for a total of 84 aliquots of each of the two control standards (PreciControl Varia (PCV1 and PCV2)) and three serum pools (SP1, SP2, SP3).