@misc{1137176, author = {David L. Duewer and Sam A. Margolis and Katherine E. Sharpless and Jeanice B. Thomas}, title = {NIST micronutrients measurement quality assurance program winter 2001 comparability studies : results for round robin XLIX fat-soluble vitamins and carotenoids in human serum and round robin 14 ascorbic acid in human serum:}, year = {2013}, month = {2013-07-01 04:07:00}, publisher = {, National Institute of Standards and Technology, Gaithersburg, MD}, doi = {https://doi.org/10.6028/NIST.IR.7880-23}, language = {en}, }