CCL28/PDGFB protein level ratio in blood (OBA_2054705) can be described as follows. A compound attribute that is the ratio of amount of C-C motif chemokine 28 (human) in blood to amount of platelet-derived growth factor subunit B (human) in blood. Also known as: the ratio of amount of C-C motif chemokine 28 (human) in blood to amount of platelet-derived growth factor subunit B (human) in blood.