Experimental Factor Ontology entry EFO_0800407 (1-palmitoyl-2-dihomo-linolenoyl-GPC (16:0/20:3n3 or 6) measurement) is quantification of the amount of 1-palmitoyl-2-dihomo-linolenoyl-GPC (16:0/20:3n3 or 6) in a sample.