A compound attribute that is the ratio of amount of platelet-derived growth factor subunit A (human) in blood to amount of vascular endothelial growth factor C (human) in blood. The trait is PDGFA/VEGFC protein level ratio in blood (OBA_2054053, an Ontology of Biological Attributes id). Also known as: the ratio of amount of platelet-derived growth factor subunit A (human) in blood to amount of vascular endothelial growth factor C (human) in blood.