ESAM/SPINT2 protein level ratio in blood (OBA_2054761) can be described as follows. A compound attribute that is the ratio of amount of endothelial cell-selective adhesion molecule (human) in blood to amount of Kunitz-type protease inhibitor 2 (human) in blood. Also known as: the ratio of amount of endothelial cell-selective adhesion molecule (human) in blood to amount of Kunitz-type protease inhibitor 2 (human) in blood.