OBA_2055755 (SERPINB1/STAT5B protein level ratio in blood) can be described as follows. A compound attribute that is the ratio of amount of leukocyte elastase inhibitor (human) in blood to amount of signal transducer and activator of transcription 5B (human) in blood. Also known as: the ratio of amount of leukocyte elastase inhibitor (human) in blood to amount of signal transducer and activator of transcription 5B (human) in blood.