CREG1/GUSB protein level ratio in blood (Ontology of Biological Attributes entry OBA_2054528) can be described as follows. A compound attribute that is the ratio of amount of protein CREG1 (human) in blood to amount of beta-glucuronidase (human) in blood. Also known as: the ratio of amount of protein CREG1 (human) in blood to amount of beta-glucuronidase (human) in blood.