CCL2/CCL7 protein level ratio in blood (OBA_2054706, an Ontology of Biological Attributes identifier) can be described as follows. A compound attribute that is the ratio of amount of C-C motif chemokine 2 (human) in blood to amount of C-C motif chemokine 7 (human) in blood. Also known as: the ratio of amount of C-C motif chemokine 2 (human) in blood to amount of C-C motif chemokine 7 (human) in blood.