Duewer, D.
and Thomas, J.
(2013),
NIST micronutrients measurement quality assurance program winter 2006 comparability studies : results for round robin LIX fat-soluble vitamins and carotenoids in human serum and round robin 24 ascorbic acid in human serum:, , National Institute of Standards and Technology, Gaithersburg, MD, [online], https://doi.org/10.6028/NIST.IR.7880-13
(Accessed October 6, 2024)