| umls-concept:C0439284 | skos:definition | NCI: A unit of concentration (molarity unit) equal to one trillionth of a mole (10E-12 mole) per one liter of solution.,NCI: A unit of concentration (molarity unit) equal to one trillionth of a mole (10E-12 mole) in one liter of solution.(NCI) | lld:umls |
