Ontology of Biological Attributes entry OBA_2054231 (CD48/SLAMF7 protein level ratio in blood) can be described as follows. A compound attribute that is the ratio of amount of CD48 antigen (human) in blood to amount of SLAM family member 7 (human) in blood. Also known as: the ratio of amount of CD48 antigen (human) in blood to amount of SLAM family member 7 (human) in blood.