CD300C/NBL1 protein level ratio in blood (Ontology of Biological Attributes id OBA_2054156) can be described as follows. A compound attribute that is the ratio of amount of CMRF35-like molecule 6 (human) in blood to amount of neuroblastoma suppressor of tumorigenicity 1 (human) in blood. Also known as: the ratio of amount of CMRF35-like molecule 6 (human) in blood to amount of neuroblastoma suppressor of tumorigenicity 1 (human) in blood.