NCIt synonyms : ag/mcg; pg/g; Attogram per Microgram; Yoctogram per Picogram; Picogram per Gram; yg/pg; zg/ng; ag/ug; Nanogram/Kilogram; Femtogram per Milligram; Zeptogram per Nanogram;
NCIt related terms : fg/mg; ng/kg;
NCIt definition : A unit of mass fraction expressed as a number of nanograms of a substance per kilogram
of the mixture. The unit is also used as a dose calculation unit.;
Alternative definition : CDISC: A unit expressed as the number of nanogram(s) per kilogram.;