ANGPT1/PDGFB protein level ratio in blood (Ontology of Biological Attributes entry OBA_2054274) can be described as follows. A compound attribute that is the ratio of amount of angiopoietin-1 (human) in blood to amount of platelet-derived growth factor subunit B (human) in blood. Also known as: the ratio of amount of angiopoietin-1 (human) in blood to amount of platelet-derived growth factor subunit B (human) in blood.