TY - GEN AU - David L. Duewer AU - Margaret C. Kline AU - Sam A. Margolis AU - Willie E. May AU - Katherine E. Sharpless AU - Jeanice B. Thomas C2 - , National Institute of Standards and Technology, Gaithersburg, MD DA - 2014-12-01 05:12:00 DO - https://doi.org/10.6028/NIST.IR.7880-31 LA - en PB - , National Institute of Standards and Technology, Gaithersburg, MD PY - 2014 TI - NIST Micronutrients Measurement Quality Assurance Program Winter, Spring, and Fall 1993 Comparability Studies::Results for Round Robins XXVII, XXVIII, and XXIX Fat-Soluble Vitamins and Carotenoids in Human Serum and Round Robin 4 Ascorbic Acid in Human Se ER -