BCAN/NPTXR protein level ratio in blood (Ontology of Biological Attributes entry OBA_2053331) can be described as follows. A compound attribute that is the ratio of amount of brevican core protein (human) in blood to amount of neuronal pentraxin receptor (human) in blood. Also known as: the ratio of amount of brevican core protein (human) in blood to amount of neuronal pentraxin receptor (human) in blood.