TY - JOUR AU - David Duewer AU - Jeanice Brown AU - Margaret Kline AU - William MacCrehan AU - R Schaffer AU - Katherine Sharpless AU - W may AU - J Crowell C2 - Analytical Chemistry DA - 1997-12-01 LA - en M1 - 69 PB - Analytical Chemistry PY - 1997 TI - NIST/NCI Micronutrients Measurement Quality Assurance Program: Measurement Reproducibility, Repeatability, Stability, and Relative Accuracy for Fat-Soluble Vitamin-Related Compounds in Human Sera ER -