Duewer, D.
, Margolis, S.
, Sharpless, K.
, Thomas, J.
and Kline, M.
(2013),
NIST micronutrients measurement quality assurance program winter and summer 2000 comparability studies : results for round robins XLVII and XLVIII fat-soluble vitamins and carotenoids in human serum and round robin 13 ascorbic acid in human serum:, , National Institute of Standards and Technology, Gaithersburg, MD, [online], https://doi.org/10.6028/NIST.IR.7880-24
(Accessed January 24, 2025)