CCL13/CCL17 protein level ratio in blood (OBA_2054809) can be described as follows. A compound attribute that is the ratio of amount of C-C motif chemokine 13 (human) in blood to amount of C-C motif chemokine 17 (human) in blood. Also known as: the ratio of amount of C-C motif chemokine 13 (human) in blood to amount of C-C motif chemokine 17 (human) in blood.