@misc{1137211, author = {David L. Duewer and Jeanice B. Thomas}, title = {NIST micronutrients measurement quality assurance program winter 2004 comparability studies : results for round robin LV fat-soluble vitamins and carotenoids in human serum and round robin 20 ascorbic acid in human serum:}, year = {2013}, month = {2013-06-01 04:06:00}, publisher = {, National Institute of Standards and Technology, Gaithersburg, MD}, doi = {https://doi.org/10.6028/NIST.IR.7880-17}, language = {en}, }