TY - GEN AU - Duewer, David L. AU - Thomas, Jeanice B. C2 - , National Institute of Standards and Technology, Gaithersburg, MD DA - 2013-04-01 04:04:00 DO - https://doi.org/10.6028/NIST.IR.7880-2 LA - en PB - , National Institute of Standards and Technology, Gaithersburg, MD PY - 2013 TI - NIST Micronutrients Measurement Quality Assurance Program Summer 2011 Comparability Studies : Results for Round Robin LXX Fat-Soluble Vitamins and Carotenoids in Human Serum and Round Robin 35 Ascorbic Acid in Human Serum: ER -