ARSB/SIAE protein level ratio in blood (OBA_2054099, an Ontology of Biological Attributes term) can be described as follows. A compound attribute that is the ratio of amount of arylsulfatase B (human) in blood to amount of sialate O-acetylesterase (human) in blood. Also known as: the ratio of amount of arylsulfatase B (human) in blood to amount of sialate O-acetylesterase (human) in blood.