SERPINB1/STIP1 protein level ratio in blood (OBA_2055756) can be described as follows. A compound attribute that is the ratio of amount of leukocyte elastase inhibitor (human) in blood to amount of stress-induced-phosphoprotein 1 (human) in blood. Also known as: the ratio of amount of leukocyte elastase inhibitor (human) in blood to amount of stress-induced-phosphoprotein 1 (human) in blood.