[A unit of mass concentration defined as the concentration of one kilogram of a substance in unit volume of the mixture equal to one liter. The concept also refers to the unit of mass density (volumic mass) defined as the density of substance which mass equal to one kilogram occupies the volume one liter. ( NCI )] (UMLS (NCI) C1300565) Gram per Milliliter; kg/L; Kilogram per Liter; Kilogram Per Litre; kilogram(s)/litre; mg/mcl; mg/uL; Microgram per Nanoliter; Milligram per Microliter; ug/nL =Quantitative Concept