Ontology of Biological Attributes identifier OBA_2054893 (CLSTN2/IGFBP7 protein level ratio in blood) can be described as follows. A compound attribute that is the ratio of amount of calsyntenin-2 (human) in blood to amount of insulin-like growth factor-binding protein 7 (human) in blood. Also known as: the ratio of amount of calsyntenin-2 (human) in blood to amount of insulin-like growth factor-binding protein 7 (human) in blood.