BLMH/SERPINE1 protein level ratio in blood (Ontology of Biological Attributes id OBA_2053294) can be described as follows. A compound attribute that is the ratio of amount of bleomycin hydrolase (human) in blood to amount of plasminogen activator inhibitor 1 (human) in blood. Also known as: the ratio of amount of bleomycin hydrolase (human) in blood to amount of plasminogen activator inhibitor 1 (human) in blood.