Duewer, D.
, Sharpless, K.
and Thomas, J.
(2013),
NIST micronutrients measurement quality assurance program winter 2003 comparability studies : results for round robin LIII fat-soluble vitamins and carotenoids in human serum and round robin 18 ascorbic acid in human serum:, , National Institute of Standards and Technology, Gaithersburg, MD, [online], https://doi.org/10.6028/NIST.IR.7880-19
(Accessed August 31, 2024)