TY  - RPRT
TI  - NIST micronutrients measurement quality assurance program summer 2004 comparability studies : results for round robin LVI fat-soluble vitamins and carotenoids in human serum and round robin 21 ascorbic acid in human serum 
AU  - Duewer, David L.
AU  - Thomas, Jeanice B.
PY  - 2013
PB  - National Institute of Standards and Technology
SN  - NIST IR 7880-16
DO  - 10.6028/NIST.IR.7880-16
ER  -