F11R/SUSD1 protein level ratio in blood (OBA_2055325, an Ontology of Biological Attributes id) can be described as follows. A compound attribute that is the ratio of amount of junctional adhesion molecule A (human) in blood to amount of sushi domain-containing protein 1 (human) in blood. Also known as: the ratio of amount of junctional adhesion molecule A (human) in blood to amount of sushi domain-containing protein 1 (human) in blood.