@prefix rdf: . @prefix owl: . @prefix xsd: . @prefix rdfs: . a ; rdfs:isDefinedBy ; rdfs:label "Picograms per millilitre"@en ; "One 10**15 part of the SI standard unit of mass of the measurand per millilitre volume of matrix."@en ; , , , ; 0.000000001 ; 1.0E-9 ; ; , , ; "pg/mL" ; "pg/mL"^^ .