CD48/CRTAM protein level ratio in blood (OBA_2054228) can be described as follows. A compound attribute that is the ratio of amount of CD48 antigen (human) in blood to amount of cytotoxic and regulatory T-cell molecule (human) in blood. Also known as: the ratio of amount of CD48 antigen (human) in blood to amount of cytotoxic and regulatory T-cell molecule (human) in blood.