TY - RPRT TI - NIST Micronutrients Measurement Quality Assurance Program (Winter 2014 Comparability Studies): Results for Round Robin LXXV Fat-Soluble Vitamins and Carotenoids in Human Serum and Round Robin 40 Ascorbic Acid in Human Serum AU - Brown Thomas, Jeanice M. AU - Duewer, David L. PY - 2015 PB - National Institute of Standards and Technology SN - NIST IR 7880-43 DO - 10.6028/NIST.IR.7880-43 ER -