SERPINB6/SOD1 protein level ratio in blood (Ontology of Biological Attributes term OBA_2055758) can be described as follows. A compound attribute that is the ratio of amount of serpin B6 (human) in blood to amount of superoxide dismutase [Cu-Zn] (human) in blood. Also known as: the ratio of amount of serpin B6 (human) in blood to amount of superoxide dismutase [Cu-Zn] (human) in blood.