A compound attribute that is the ratio of amount of CD48 antigen (human) in blood to amount of Fc receptor-like protein 6 (human) in blood. The trait is OBA_2054229 (CD48/FCRL6 protein level ratio in blood). Also known as: the ratio of amount of CD48 antigen (human) in blood to amount of Fc receptor-like protein 6 (human) in blood.