Ontology of Biological Attributes term OBA_2053153 (ROR1/THBD protein level ratio in blood) can be described as follows. A compound attribute that is the ratio of amount of inactive tyrosine-protein kinase transmembrane receptor ROR1 (human) in blood to amount of thrombomodulin (human) in blood. Also known as: the ratio of amount of inactive tyrosine-protein kinase transmembrane receptor ROR1 (human) in blood to amount of thrombomodulin (human) in blood.