LTBP2/PDGFRA protein level ratio in blood (Ontology of Biological Attributes identifier OBA_2055018) can be described as follows. A compound attribute that is the ratio of amount of latent-transforming growth factor beta-binding protein 2 (human) in blood to amount of platelet-derived growth factor receptor alpha (human) in blood. Also known as: the ratio of amount of latent-transforming growth factor beta-binding protein 2 (human) in blood to amount of platelet-derived growth factor receptor alpha (human) in blood.