Ontology of Biological Attributes term OBA_2053992 (PDGFC/TFPI protein level ratio in blood) can be described as follows. A compound attribute that is the ratio of amount of platelet-derived growth factor C (human) in blood to amount of tissue factor pathway inhibitor (human) in blood. Also known as: the ratio of amount of platelet-derived growth factor C (human) in blood to amount of tissue factor pathway inhibitor (human) in blood.