A compound attribute that is the ratio of amount of endoglin (human) in blood to amount of neural cell adhesion molecule 2 (human) in blood. The trait is ENG/NCAM2 protein level ratio in blood (Ontology of Biological Attributes id OBA_2054666). Also known as: the ratio of amount of endoglin (human) in blood to amount of neural cell adhesion molecule 2 (human) in blood.