level of Phosphatidylethanolamine (16:0_18:2) in blood serum (OBA_2045136, an Ontology of Biological Attributes identifier) is the amount of a Phosphatidylethanolamine (16:0_18:2) when measured in blood serum. Also known as: blood serum Phosphatidylethanolamine (16:0_18:2) amount.