TY  - RPRT
TI  - NIST Micronutrients Measurement Quality Assurance Program Winter, Spring, and Fall 1991 Comparability Studies: Results for Round Robins XXI, XXII, and XXIII Fat-Soluble Vitamins and Carotenoids in Human Serum 
AU  - Brown Thomas, Jeanice M.
AU  - Duewer, David L.
AU  - Kline, Margaret C.
AU  - Sharpless, Katherine E.
AU  - May, Willie E.
AU  - Margolis, Sam A.
AU  - Craft, Neal E.
PY  - 2015
PB  - National Institute of Standards and Technology
SN  - NIST IR 7880-33
DO  - 10.6028/NIST.IR.7880-33
ER  -