NCIt related terms : VFr; {v/v}; {Volume Fraction};
NCIt definition : Quotient of the volume of a component and the total volume of the system containing
the component. For clinical chemistry the term component is recommended, IS0 uses
substance. For clinical chemistry the term system is recommended, IS0 uses mixture.;
Alternative definition : CDISC: Quotient of the volume of a component substance to the sum of the volumes of
all component substances.;