Ontology of Biological Attributes entry OBA_2054749 (EREG/MPI protein level ratio in blood) can be described as follows. A compound attribute that is the ratio of amount of proepiregulin (human) in blood to amount of mannose-6-phosphate isomerase (human) in blood. Also known as: the ratio of amount of proepiregulin (human) in blood to amount of mannose-6-phosphate isomerase (human) in blood.