OBA_2054878 (LAMA4/PDGFB protein level ratio in blood) can be described as follows. A compound attribute that is the ratio of amount of laminin subunit alpha-4 (human) in blood to amount of platelet-derived growth factor subunit B (human) in blood. Also known as: the ratio of amount of laminin subunit alpha-4 (human) in blood to amount of platelet-derived growth factor subunit B (human) in blood.