TY - GEN AU - David L. Duewer AU - Sam A. Margolis AU - Katherine E. Sharpless AU - Jeanice B. Thomas AU - Margaret C. Kline C2 - , National Institute of Standards and Technology, Gaithersburg, MD DA - 2014-11-01 04:11:00 DO - https://doi.org/10.6028/NIST.IR.7880-30 LA - en PB - , National Institute of Standards and Technology, Gaithersburg, MD PY - 2014 TI - NIST Micronutrients Measurement Quality Assurance Program Winter, Spring, and Fall 1994 Comparability Studies : Results for Round Robins XXX, XXXI, and XXXII Fat-Soluble Vitamins and Carotenoids in Human Serum and Round Robins 5 and 6 Ascorbic Acid in Hum ER -